9508 Inflow/Outflow Record Layout FIELD_NAME FIELD_TYPE FIELD_LEN EXPLANATIONS ID C 13 Unique ID for each record. (NICAR CREATED FIELD). YR C 3 The two-year period covered by the return e.g 956 includes people who moved between 1995 and 1996 (NICAR CREATED FIELD). TMAPKEY/FMAPKEY C 5 A combination of state and county FIPS codes for mapping where people moved to/from moved to/from (NICAR CREATED FIELD). TOSTATE/FROMST C 3 FIPS code of the state people moved to/from 01-56 - U.S states, including DC 00 - Summary records for the entire U.S. TOCOUNT/FROMCO C 7 FIPS code of the county people moved to/from FMAPKEY/TMAPKEY C 5 A combination of state and county FIPS codes for mapping where people moved from/to (NICAR CREATED FIELD). FROMST/TOSTATE C 14 FIPS code of the state people moved from/to FROMCO/TOCOUNT C 7 FIPS code of the county people moved from/to FRSTNME/TOSTNME C 5 Postal abbreviation for the state people moved from/to FRCTYNM/TOCTYNM C 35 Full name of the county people moved from/to RETURNS N 10 Number of returns filed by migrants Returnsch C 15 NICAR-created field to address the character "D" used to represent suppressed data.(056-067) "D" converted to "0" in Returns field. EXEMPS N 12 Number of exemptions claimed by migrants EXEMPSCH C 11 NICAR-created field to address the character "D" used to represent suppressed data.(056-067) "D" converted to "0" in Exemps field. AAGI* N 15 Aggregate adjusted gross income of migrants (000s) AAGICH C 10 NICAR-created field to address the character "D" used to represent suppressed data.(056-067) "D" converted to "0" in AAGI field. MAGI N 10 Median adjusted gross income of migrants. ATMI* N 13 Aggregate total money income of migrants (000s) MTMI* N 10 Median total money income of migrants * The IRS transitioned from Total Money Income to Adjusted Gross Income in 1995/1996. Thus, 956 records include TMI and AGI values.