1978 672 56
1979 784 65 16.7%
1980 873 73 11.4%
1981 870 73 -0.3%
1982 883 74 1.5%
1983 897 75 1.6%
1984 1110 93 23.7%
1985 1416 118 27.6%
1986 1689 141 19.3%
1987 1893 158 12.1%
1988 2277 190 20.3%
1989 2608 217 14.5%
1990 2917 243 11.8%
1991 3375 281 15.7%
1992 4273 356 26.6%
1993 5650 471 32.2% 210
1994 7401 617 31.0% 220
1995 9279 773 25.4% 270
1996 10663 889 14.9% 300
1997 11425 952 7.1% 315
1998 12059 1005 5.5% 325
1999 14147 1179 17.3% 370，423
2000 15420 1285 9.0% 445
2001 17764 1480 15.2% 490
2002 19473 1623 9.6% 535
2003 22160 1847 13.8% 570 5
2004 24398 2033 10.1% 635 5.5
2005 26823 2235 9.9% 690 6
2006 29569 2464 10.2% 750 6.5
2007 34707 2892 17.4% 840 7.5
2008 39502 3292 13.8% 960 8
2009 42789 3566 8.3% 960 8
2010 46757 3896 9.2% 1120 9
2011 51968 4331 11.1% 1280 11
2012 56304 4692 8.3% 1450 12.5
2013 60435 5036 7.3% 1620 14
2014 65412 5451 8.2％ 1820 15.5
2015 71268 5939 8.9% 2020 17
2016 78048 6504 9.5% 2190 18.5
2017 87096 7258 11.5% 2300 20