_ FILE_NAMECWNDX_NAMECWKEY_DESCRCW(KEY1CGW KEY2CQW KEY3C[W KEY4CeW UNIQUELoWCONGRUENTCpWPATHCqW(PRIORITYCW MN92NCOMMN92NC87By 1987 product code PROD87 F \mn92\MN92NC87.ndx 2 MN92NCOMMN92NC92By 1992 product code PRODUCT F \mn92\MN92NC92.ndx 1 MN92NCIRMN92NCIRBy CIR series number SOURCE T \mn92\MN92NCIR.ndx MN92NUB MN92NUBPBy product code PRODUCT F \mn92\MN92NUBP.ndx MN92NUM MN92NUMCFirst record for each source (census,CIRSOURCE T \mn92\MN92NUMC.ndx 2 MN92NUM MN92NUMPBy product code PRODUCT F \mn92\MN92NUMP.ndx 1