2002 Almanac (page 476) Table D-15 Mountain Counties Air Basin: Population and VMT Trends Mountain Counties Air Basin Surface Area = 12497 square miles Parameter 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Population 243900 253400 259100 266500 277700 288600 302400 318000 332700 352250 366200 374130 382150 386100 389810 393500 400540 403850 407950 412760 Avg. Daily VMT/1000 5496 5622 5936 6542 7101 7619 8071 8854 9230 9373 9561 9747 10038 10228 10426 10444 10344 10530 10839 11155