PRC-EST2007-18+POP-RES: Estimates of the Total Resident Population and Resident Population Age 18 Years and Over for Puerto Rico: July 1, 2007 File: 7/1/2007 Puerto Rico Characteristics Population Estimates File Source: Population Estimates Program, U.S. Census Bureau Release Date: January 4, 2008 Data fields (in order of which they appear): VARIABLE DESCRIPTION SUMLEV Geographic Summary Level STATE State equivalent FIPS code NAME State equivalent Name POPESTIMATE2007 7/1/2007 resident population estimate POPEST18PLUS2007 7/1/2007 resident population estimate age 18 years and over PCNT_POPEST18PLUS 7/1/2007 Percent of State equivalent population age 18 years and over The key for SUMLEV is as follows: 040 = Puerto Rico Commonwealth