| 2003 | 2004 | 増減率 | 2005 | 増減率 | 2006 | 増減率 | 2007 | 増減率 | 2008 | 増減率 | | 1月 | 15,296 | 14,000 | -8.5 | 10,856 | -22.5 | 10,479 | -3.5 | 9,381 | -10.5 | 8,211 | -12.5 | | 2月 | 19,511 | 17,926 | -8.1 | 14,415 | -19.6 | 14,359 | -0.4 | 12,432 | -13.4 | 11,184 | -10.0 | | 3月 | 21,863 | 21,818 | -0.2 | 18,002 | -17.5 | 16,001 | -11.1 | 13,728 | -14.2 | 11,841 | -13.7 | | 4月 | 22,126 | 19,723 | -10.9 | 16,522 | -16.2 | 14,302 | -13.4 | 12,737 | -10.9 | 11,784 | -7.5 | | 5月 | 21,310 | 15,800 | -25.9 | 14,126 | -10.6 | 13,295 | -5.9 | 12,404 | -6.7 | 10,705 | -13.7 | | 6月 | 21,789 | 18,675 | -14.3 | 17,193 | -7.9 | 15,087 | -12.2 | 13,354 | -11.5 | | | | 7月 | 22,991 | 17,840 | -22.4 | 15,614 | -12.5 | 13,494 | -13.6 | 12,598 | -6.6 | | | | 8月 | 18,162 | 16,206 | -10.8 | 15,523 | -4.2 | 13,600 | -12.4 | 12,059 | -11.3 | | | | 9月 | 19,589 | 16,517 | -15.7 | 15,250 | -7.7 | 13,486 | -11.6 | 10,862 | -19.5 | | | | 10月 | 20,851 | 16,555 | -20.6 | 15,141 | -8.5 | 14,041 | -7.3 | 13,194 | -6.0 | | | | 11月 | 17,207 | 16,522 | -4.0 | 15,291 | -7.5 | 13,053 | -14.6 | 12,284 | -5.9 | | | | 12月 | 21,682 | 19,820 | -8.6 | 16,361 | -17.5 | 14,720 | -10.0 | 13,219 | -10.2 | | | | | 合計 | 242,377 | 211,402 | -12.8 | 184,294 | -12.8 | 165,917 | -10.0 | 148,252 | -10.6 | 53,725 | |
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