['DUID',
'PID',
'DUPERSID',
'PANEL',
'FAMID31',
'FAMID42',
'FAMID53',
'FAMID12',
'FAMIDYR',
'CPSFAMID',
'FCSZ1231',
'FCRP1231',
'RULETR31',
'RULETR42',
'RULETR53',
'RULETR12',
'RUSIZE31',
'RUSIZE42',
'RUSIZE53',
'RUSIZE12',
'RUCLAS31',
'RUCLAS42',
'RUCLAS53',
'RUCLAS12',
'FAMSZE31',
'FAMSZE42',
'FAMSZE53',
'FAMSZE12',
'FMRS1231',
'FAMS1231',
'FAMSZEYR',
'FAMRFPYR',
'REGION31',
'REGION42',
'REGION53',
'REGION12',
'MSA31',
'MSA42',
'MSA53',
'MSA12',
'REFPRS31',
'REFPRS42',
'REFPRS53',
'REFPRS12',
'RESP31',
'RESP42',
'RESP53',
'RESP12',
'PROXY31',
'PROXY42',
'PROXY53',
'PROXY12',
'INTVLANG',
'BEGRFD31',
'BEGRFM31',
'BEGRFY31',
'ENDRFD31',
'ENDRFM31',
'ENDRFY31',
'BEGRFD42',
'BEGRFM42',
'BEGRFY42',
'ENDRFD42',
'ENDRFM42',
'ENDRFY42',
'BEGRFD53',
'BEGRFM53',
'BEGRFY53',
'ENDRFD53',
'ENDRFM53',
'ENDRFY53',
'ENDRFD12',
'ENDRFM12',
'ENDRFY12',
'KEYNESS',
'INSCOP31',
'INSCOP42',
'INSCOP53',
'INSCOP12',
'INSC1231',
'INSCOPE',
'ELGRND31',
'ELGRND42',
'ELGRND53',
'ELGRND12',
'PSTATS31',
'PSTATS42',
'PSTATS53',
'RURSLT31',
'RURSLT42',
'RURSLT53',
'AGE31X',
'AGE42X',
'AGE53X',
'AGE12X',
'AGELAST',
'DOBMM',
'DOBYY',
'SEX',
'RACEVER',
'RACEV1X',
'RACEAX',
'RACEBX',
'RACEWX',
'RACETHX',
'HISPANX',
'HISPCAT',
'MARRY31X',
'MARRY42X',
'MARRY53X',
'MARRY12X',
'SPOUID31',
'SPOUID42',
'SPOUID53',
'SPOUID12',
'SPOUIN31',
'SPOUIN42',
'SPOUIN53',
'SPOUIN12',
'EDUCYR',
'EDUYRDEG',
'HIDEG',
'EDRECODE',
'FTSTU31X',
'FTSTU42X',
'FTSTU53X',
'FTSTU12X',
'ACTDTY31',
'ACTDTY42',
'ACTDTY53',
'HONRDC31',
'HONRDC42',
'HONRDC53',
'RFREL31X',
'RFREL42X',
'RFREL53X',
'RFREL12X',
'MOPID31X',
'MOPID42X',
'MOPID53X',
'DAPID31X',
'DAPID42X',
'DAPID53X',
'RTHLTH31',
'RTHLTH42',
'RTHLTH53',
'MNHLTH31',
'MNHLTH42',
'MNHLTH53',
'HIBPDX',
'HIBPAGED',
'BPMLDX',
'CHDDX',
'CHDAGED',
'ANGIDX',
'ANGIAGED',
'MIDX',
'MIAGED',
'OHRTDX',
'OHRTAGED',
'STRKDX',
'STRKAGED',
'EMPHDX',
'EMPHAGED',
'CHBRON31',
'CHBRON53',
'CHOLDX',
'CHOLAGED',
'CANCERDX',
'CABLADDR',
'BLDRAGED',
'BLDRREMS',
'CABRAIN',
'BRAIAGED',
'BRAIREMS',
'CABREAST',
'BRSTAGED',
'BRSTREMS',
'CACERVIX',
'CERVAGED',
'CERVREMS',
'CACOLON',
'COLOAGED',
'COLOREMS',
'CALEUKEM',
'LEUKAGED',
'LEUKREMS',
'CALUNG',
'LUNGAGED',
'LUNGREMS',
'CALYMPH',
'LYMPAGED',
'LYMPREMS',
'CAMELANO',
'MELAAGED',
'MELAREMS',
'CAOTHER',
'OTHRAGED',
'OTHRREMS',
'CAPROSTA',
'PRSTAGED',
'PRSTREMS',
'CASKINNM',
'SKNMAGED',
'SKNMREMS',
'CASKINDK',
'SKDKAGED',
'SKDKREMS',
'CATHROAT',
'THRTAGED',
'THRTREMS',
'CATHYROD',
'THYRAGED',
'THYRREMS',
'DIABDX',
'DIABAGED',
'JTPAIN31',
'JTPAIN53',
'ARTHDX',
'ARTHTYPE',
'ARTHAGED',
'ASTHDX',
'ASTHAGED',
'ASSTIL31',
'ASSTIL53',
'ASATAK31',
'ASATAK53',
'ASTHEP31',
'ASTHEP53',
'ASACUT53',
'ASMRCN53',
'ASPREV53',
'ASDALY53',
'ASPKFL53',
'ASEVFL53',
'ASWNFL53',
'ADHDADDX',
'ADHDAGED',
'PREGNT31',
'PREGNT42',
'PREGNT53',
'IADLHP31',
'IADLHP42',
'IADLHP53',
'IADL3M31',
'IADL3M42',
'IADL3M53',
'ADLHLP31',
'ADLHLP42',
'ADLHLP53',
'ADL3MO31',
'ADL3MO42',
'ADL3MO53',
'AIDHLP31',
'AIDHLP53',
'WLKLIM31',
'WLKLIM53',
'LFTDIF31',
'LFTDIF53',
'STPDIF31',
'STPDIF53',
'WLKDIF31',
'WLKDIF53',
'MILDIF31',
'MILDIF53',
'STNDIF31',
'STNDIF53',
'BENDIF31',
'BENDIF53',
'RCHDIF31',
'RCHDIF53',
'FNGRDF31',
'FNGRDF53',
'WLK3MO31',
'WLK3MO53',
'ACTLIM31',
'ACTLIM53',
'WRKLIM31',
'WRKLIM53',
'HSELIM31',
'HSELIM53',
'SCHLIM31',
'SCHLIM53',
'UNABLE31',
'UNABLE53',
'SOCLIM31',
'SOCLIM53',
'COGLIM31',
'COGLIM53',
'WRGLAS42',
'SEEDIF42',
'BLIND42',
'READNW42',
'RECPEP42',
'VISION42',
'HEARAD42',
'HEARDI42',
'DEAF42',
'HEARMO42',
'HEARSM42',
'HEARNG42',
'ANYLIM12',
'LSHLTH42',
'NEVILL42',
'SICEAS42',
'HLTHLF42',
'WRHLTH42',
'CHPMED42',
'CHPMHB42',
'CHPMCN42',
'CHSERV42',
'CHSRHB42',
'CHSRCN42',
'CHLIMI42',
'CHLIHB42',
'CHLICO42',
'CHTHER42',
'CHTHHB42',
'CHTHCO42',
'CHCOUN42',
'CHEMPB42',
'CSHCN42',
'MOMPRO42',
'DADPRO42',
'UNHAP42',
'SCHLBH42',
'HAVFUN42',
'ADUPRO42',
'NERVAF42',
'SIBPRO42',
'KIDPRO42',
'SPRPRO42',
'SCHPRO42',
'HOMEBH42',
'TRBLE42',
'CHILCR42',
'CHILWW42',
'CHRTCR42',
'CHRTWW42',
'CHAPPT42',
'CHNDCR42',
'CHENEC42',
'CHLIST42',
'CHEXPL42',
'CHRESP42',
'CHPRTM42',
'CHHECR42',
'CHSPEC42',
'CHEYRE42',
'MESHGT42',
'WHNHGT42',
'MESWGT42',
'WHNWGT42',
'CHBMIX42',
'MESVIS42',
'MESBPR42',
'WHNBPR42',
'DENTAL42',
'WHNDEN42',
'EATHLT42',
'WHNEAT42',
'PHYSCL42',
'WHNPHY42',
'SAFEST42',
'WHNSAF42',
'BOOST42',
'WHNBST42',
'LAPBLT42',
'WHNLAP42',
'HELMET42',
'WHNHEL42',
'NOSMOK42',
'WHNSMK42',
'TIMALN42',
'DENTCK53',
'BPCHEK53',
'BPMONT53',
'CHOLCK53',
'CHECK53',
'NOFAT53',
'EXRCIS53',
'FLUSHT53',
'ASPRIN53',
'NOASPR53',
'STOMCH53',
'LSTETH53',
'PSA53',
'HYSTER53',
'PAPSMR53',
'BRSTEX53',
'MAMOGR53',
'BSTST53',
'BSTSRE53',
'CLNTST53',
'CLNTRE53',
'SGMTST53',
'SGMTRE53',
'PHYEXE53',
'BMINDX53',
'SEATBE53',
'SAQELIG',
'ADPRX42',
'ADILCR42',
'ADILWW42',
'ADRTCR42',
'ADRTWW42',
'ADAPPT42',
'ADNDCR42',
'ADEGMC42',
'ADLIST42',
'ADEXPL42',
'ADRESP42',
'ADPRTM42',
'ADINST42',
'ADEZUN42',
'ADTLHW42',
'ADFFRM42',
'ADFHLP42',
'ADHECR42',
'ADSMOK42',
'ADNSMK42',
'ADDRBP42',
'ADSPEC42',
'ADSPRF42',
'ADGENH42',
'ADDAYA42',
'ADCLIM42',
'ADPALS42',
'ADPWLM42',
'ADMALS42',
'ADMWLM42',
'ADPAIN42',
'ADCAPE42',
'ADNRGY42',
'ADDOWN42',
'ADSOCA42',
'PCS42',
'MCS42',
'SFFLAG42',
'ADNERV42',
'ADHOPE42',
'ADREST42',
'ADSAD42',
'ADEFRT42',
'ADWRTH42',
'K6SUM42',
'ADINTR42',
'ADDPRS42',
'PHQ242',
'ADINSA42',
'ADINSB42',
'ADRISK42',
'ADOVER42',
'ADCMPM42',
'ADCMPD42',
'ADCMPY42',
'ADLANG42',
'DSDIA53',
'DSA1C53',
'DSFT1353',
'DSFT1253',
'DSFT1153',
'DSFB1153',
'DSFTNV53',
'DSEY1353',
'DSEY1253',
'DSEY1153',
'DSEB1153',
'DSEYNV53',
'DSCH1353',
'DSCH1253',
'DSCH1153',
'DSCB1153',
'DSCHNV53',
'DSFL1353',
'DSFL1253',
'DSFL1153',
'DSVB1153',
'DSFLNV53',
'DSKIDN53',
'DSEYPR53',
'DSDIET53',
'DSMED53',
'DSINSU53',
'DSCPCP53',
'DSCNPC53',
'DSCPHN53',
'DSCINT53',
'DSCGRP53',
'DSCONF53',
'DSPRX53',
'DDNWRK31',
'DDNWRK42',
'DDNWRK53',
'WKINBD31',
'WKINBD42',
'WKINBD53',
'DDNSCL31',
'DDNSCL42',
'DDNSCL53',
'SCLNBD31',
'SCLNBD42',
'SCLNBD53',
'DDBDYS31',
'DDBDYS42',
'DDBDYS53',
'OTHDYS31',
'OTHDYS42',
'OTHDYS53',
'OTHNDD31',
'OTHNDD42',
'OTHNDD53',
'ACCELI42',
'LANGHM42',
'ENGCMF42',
'ENGSPK42',
'USBORN42',
'USLIVE42',
'HAVEUS42',
'YNOUSC42',
'NOREAS42',
'SELDSI42',
'NEWARE42',
'DKWHRU42',
'USCNOT42',
'PERSLA42',
'DIFFPL42',
'INSRPL42',
'MYSELF42',
'CARECO42',
'NOHINS42',
'OTHINS42',
'JOBRSN42',
'NEWDOC42',
'DOCELS42',
'NOLIKE42',
'HEALTH42',
'KNOWDR42',
'ONJOB42',
'NOGODR42',
'TRANS42',
'CLINIC42',
'OTHREA42',
'PROVTY42',
'PLCTYP42',
'GOTOUS42',
'TMTKUS42',
'DFTOUS42',
'TYPEPE42',
'LOCATN42',
'HSPLAP42',
'WHITPR42',
'BLCKPR42',
'ASIANP42',
'NATAMP42',
'PACISP42',
'OTHRCP42',
'GENDRP42',
'MINORP42',
'PREVEN42',
'REFFRL42',
'ONGONG42',
'PHNREG42',
'OFFHOU42',
'AFTHOU42',
'TREATM42',
'RESPCT42',
'DECIDE42',
'EXPLOP42',
'LANGPR42',
'MDUNAB42',
'MDUNRS42',
'MDUNPR42',
'MDDLAY42',
'MDDLRS42',
'MDDLPR42',
'DNUNAB42',
'DNUNRS42',
'DNUNPR42',
'DNDLAY42',
'DNDLRS42',
'DNDLPR42',
'PMUNAB42',
'PMUNRS42',
'PMUNPR42',
'PMDLAY42',
'PMDLRS42',
'PMDLPR42',
'EMPST31',
'EMPST42',
'EMPST53',
'RNDFLG31',
'MORJOB31',
'MORJOB42',
'MORJOB53',
'EVRWRK',
'HRWG31X',
'HRWG42X',
'HRWG53X',
'HRWGIM31',
'HRWGIM42',
'HRWGIM53',
'HRHOW31',
'HRHOW42',
'HRHOW53',
'DIFFWG31',
'DIFFWG42',
'DIFFWG53',
'NHRWG31',
'NHRWG42',
'NHRWG53',
'HOUR31',
'HOUR42',
'HOUR53',
'TEMPJB31',
'TEMPJB42',
'TEMPJB53',
'SSNLJB31',
'SSNLJB42',
'SSNLJB53',
'SELFCM31',
'SELFCM42',
'SELFCM53',
'DISVW31X',
'DISVW42X',
'DISVW53X',
'CHOIC31',
'CHOIC42',
'CHOIC53',
'INDCAT31',
'INDCAT42',
'INDCAT53',
'NUMEMP31',
'NUMEMP42',
'NUMEMP53',
'MORE31',
'MORE42',
'MORE53',
'UNION31',
'UNION42',
'UNION53',
'NWK31',
'NWK42',
'NWK53',
'CHGJ3142',
'CHGJ4253',
'YCHJ3142',
'YCHJ4253',
'STJBMM31',
'STJBDD31',
'STJBYY31',
'STJBMM42',
'STJBDD42',
'STJBYY42',
'STJBMM53',
'STJBDD53',
'STJBYY53',
'EVRETIRE',
'OCCCAT31',
'OCCCAT42',
'OCCCAT53',
'PAYVAC31',
'PAYVAC42',
'PAYVAC53',
'SICPAY31',
'SICPAY42',
'SICPAY53',
'PAYDR31',
'PAYDR42',
'PAYDR53',
'RETPLN31',
'RETPLN42',
'RETPLN53',
'BSNTY31',
'BSNTY42',
'BSNTY53',
'JOBORG31',
'JOBORG42',
'JOBORG53',
'HELD31X',
'HELD42X',
'HELD53X',
'OFFER31X',
'OFFER42X',
'OFFER53X',
'OFREMP31',
'OFREMP42',
'OFREMP53',
'YNOINS31',
'YNOINS42',
'YNOINS53',
'SSIDIS12',
'AFDC12',
'FILEDR12',
'WILFIL12',
'FLSTAT12',
'FILER12',
'JTINRU12',
'JNTPID12',
'CLMDEP12',
'DEPDNT12',
'DPINRU12',
'DPOTSD12',
'TAXFRM12',
'DEDUCT12',
'TOTDED12',
'CLMHIP12',
'EICRDT12',
'FOODST12',
'FOODMN12',
'FOODVL12',
'TTLP12X',
'FAMINC12',
'POVCAT12',
'POVLEV12',
'WAGEP12X',
'WAGIMP12',
'BUSNP12X',
'BUSIMP12',
'UNEMP12X',
'UNEIMP12',
'WCMPP12X',
'WCPIMP12',
'INTRP12X',
'INTIMP12',
'DIVDP12X',
'DIVIMP12',
'SALEP12X',
'SALIMP12',
'PENSP12X',
'PENIMP12',
'SSECP12X',
'SSCIMP12',
'TRSTP12X',
'TRTIMP12',
'VETSP12X',
'VETIMP12',
'IRASP12X',
'IRAIMP12',
'REFDP12X',
'REFIMP12',
'ALIMP12X',
'ALIIMP12',
'CHLDP12X',
'CHLIMP12',
'CASHP12X',
'CSHIMP12',
'SSIP12X',
'SSIIMP12',
'PUBP12X',
'PUBIMP12',
'OTHRP12X',
'OTHIMP12',
'HIEUIDX',
'TRIJA12X',
'TRIFE12X',
'TRIMA12X',
'TRIAP12X',
'TRIMY12X',
'TRIJU12X',
'TRIJL12X',
'TRIAU12X',
'TRISE12X',
'TRIOC12X',
'TRINO12X',
'TRIDE12X',
'MCRJA12',
'MCRFE12',
'MCRMA12',
'MCRAP12',
'MCRMY12',
'MCRJU12',
'MCRJL12',
'MCRAU12',
'MCRSE12',
'MCROC12',
'MCRNO12',
'MCRDE12',
'MCRJA12X',
'MCRFE12X',
'MCRMA12X',
'MCRAP12X',
'MCRMY12X',
'MCRJU12X',
'MCRJL12X',
'MCRAU12X',
'MCRSE12X',
'MCROC12X',
'MCRNO12X',
'MCRDE12X',
'MCDJA12',
'MCDFE12',
'MCDMA12',
'MCDAP12',
'MCDMY12',
'MCDJU12',
'MCDJL12',
'MCDAU12',
'MCDSE12',
'MCDOC12',
'MCDNO12',
'MCDDE12',
'MCDJA12X',
'MCDFE12X',
'MCDMA12X',
'MCDAP12X',
'MCDMY12X',
'MCDJU12X',
'MCDJL12X',
'MCDAU12X',
'MCDSE12X',
'MCDOC12X',
'MCDNO12X',
'MCDDE12X',
'OPAJA12',
'OPAFE12',
'OPAMA12',
'OPAAP12',
'OPAMY12',
'OPAJU12',
'OPAJL12',
'OPAAU12',
'OPASE12',
'OPAOC12',
'OPANO12',
'OPADE12',
'OPBJA12',
'OPBFE12',
'OPBMA12',
'OPBAP12',
'OPBMY12',
'OPBJU12',
'OPBJL12',
'OPBAU12',
'OPBSE12',
'OPBOC12',
'OPBNO12',
'OPBDE12',
'STAJA12',
'STAFE12',
'STAMA12',
'STAAP12',
'STAMY12',
'STAJU12',
'STAJL12',
'STAAU12',
'STASE12',
'STAOC12',
'STANO12',
'STADE12',
'PUBJA12X',
'PUBFE12X',
'PUBMA12X',
'PUBAP12X',
'PUBMY12X',
'PUBJU12X',
'PUBJL12X',
'PUBAU12X',
'PUBSE12X',
'PUBOC12X',
'PUBNO12X',
'PUBDE12X',
'PEGJA12',
'PEGFE12',
'PEGMA12',
'PEGAP12',
'PEGMY12',
'PEGJU12',
'PEGJL12',
'PEGAU12',
'PEGSE12',
'PEGOC12',
'PEGNO12',
'PEGDE12',
'PDKJA12',
'PDKFE12',
'PDKMA12',
'PDKAP12',
'PDKMY12',
'PDKJU12',
'PDKJL12',
'PDKAU12',
'PDKSE12',
'PDKOC12',
'PDKNO12',
'PDKDE12',
'PNGJA12',
'PNGFE12',
'PNGMA12',
'PNGAP12',
'PNGMY12',
'PNGJU12',
'PNGJL12',
'PNGAU12',
'PNGSE12',
'PNGOC12',
'PNGNO12',
'PNGDE12',
'POGJA12',
'POGFE12',
'POGMA12',
'POGAP12',
'POGMY12',
'POGJU12',
'POGJL12',
'POGAU12',
'POGSE12',
'POGOC12',
'POGNO12',
'POGDE12',
'PRSJA12',
'PRSFE12',
'PRSMA12',
'PRSAP12',
'PRSMY12',
'PRSJU12',
'PRSJL12',
'PRSAU12',
'PRSSE12',
'PRSOC12',
'PRSNO12',
'PRSDE12',
'POUJA12',
'POUFE12',
'POUMA12',
'POUAP12',
'POUMY12',
'POUJU12',
'POUJL12',
'POUAU12',
'POUSE12',
'POUOC12',
'POUNO12',
'POUDE12',
'PRIJA12',
'PRIFE12',
'PRIMA12',
'PRIAP12',
'PRIMY12',
'PRIJU12',
'PRIJL12',
'PRIAU12',
'PRISE12',
'PRIOC12',
'PRINO12',
'PRIDE12',
'HPEJA12',
'HPEFE12',
'HPEMA12',
'HPEAP12',
'HPEMY12',
'HPEJU12',
'HPEJL12',
'HPEAU12',
'HPESE12',
'HPEOC12',
'HPENO12',
'HPEDE12',
'HPDJA12',
'HPDFE12',
'HPDMA12',
'HPDAP12',
'HPDMY12',
'HPDJU12',
'HPDJL12',
'HPDAU12',
'HPDSE12',
'HPDOC12',
'HPDNO12',
'HPDDE12',
'HPNJA12',
'HPNFE12',
'HPNMA12',
'HPNAP12',
'HPNMY12',
'HPNJU12',
'HPNJL12',
'HPNAU12',
'HPNSE12',
'HPNOC12',
'HPNNO12',
'HPNDE12',
'HPOJA12',
'HPOFE12',
'HPOMA12',
'HPOAP12',
'HPOMY12',
'HPOJU12',
'HPOJL12',
'HPOAU12',
'HPOSE12',
'HPOOC12',
'HPONO12',
'HPODE12',
'HPSJA12',
'HPSFE12',
'HPSMA12',
'HPSAP12',
'HPSMY12',
'HPSJU12',
...]