Massachusetts, USA The shapefile contains the following variables: 1. OBJECTID - The unique ID for each record in the table 2. TOWN_ID - Town ID 3. TOWN - Town Name 4. FIPS_STCO - Federal Information Processing Standards Code for towns 5. POP1980 - 1980 Population 6. POP1990 - 1990 Population 7. POP2000 - 2000 Population 8. TOT_CR_05 - Sum of Part 1 offenses (Source:MassGIS) 9. CRIME_RATE - Sum of Part 1 offenses per 1000 Population (Formula: TOT_CRIME/(POP2005/1000)) *Source - MA State Police