California Air Resources Board 2004 Almanac (web) Riverside County Appendix D South Coast Air Basin Population and VMT Table D-80 Parameter 1980 1985 1990 1995 2000 2005 2010 Population 521700 651500 925600 1070600 1203600 1443300 1671600 Avg. Daily VMT/1000 8452 12671 22304 26846 34479 40563 46039