ABCDEFGHIJKLMNOPQRSTUVWXYZ
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調査年小計2年未満2年以上6年未満
6年以上10年未満
10年以上20年未満
20年以上30年未満
30年以上不　明
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1980 27,082 2,671 11,625 5,110 3,493 1,063 541 2,579
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1981 28,005 2,923 8,926 7,999 4,063 1,186 564 2,344
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1982 26,935 2,668 7,463 8,653 4,200 1,204 644 2,103
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1983 28,569 2,504 7,431 8,962 5,268 1,535 811 2,058
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1984 30,004 2,466 7,167 7,976 7,666 1,718 956 2,055
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1985 26,658 1,959 6,749 7,146 6,128 1,714 1,057 1,905
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1986 23,309 1,832 5,740 5,375 5,843 1,858 1,052 1,609
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1987 16,200 1,254 4,063 3,460 4,287 1,376 698 1,062
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1988 12,918 1,097 3,390 2,519 3,532 1,108 580 692
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1989 9,361 860 2,350 1,847 2,481 802 462 559
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1990 8,364 853 2,231 1,677 1,996 709 421 477
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1991 12,857 1,144 3,592 2,288 3,297 1,335 716 485
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1992 15,668 915 4,225 2,792 4,153 1,973 1,093 517
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1993 15,804 491 4,236 3,026 4,211 2,232 1,294 314
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1994 15,220 367 3,612 2,986 4,197 2,279 1,411 368
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1995 16,095 362 2,849 3,344 4,700 2,751 1,829 260
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1996 15,628 340 2,371 3,129 4,720 2,872 1,939 257
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1997 17,171 347 2,005 3,651 5,148 3,242 2,465 313
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1998 19,678 316 2,182 3,636 5,916 3,906 3,298 424
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1999 15,730 185 1,455 2,729 4,874 3,217 2,893 377
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2000 19,147 172 1,532 2,792 6,169 4,191 3,877 414
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2001 19,577 236 1,576 2,213 6,433 4,112 4,572 435
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2002 19,491 208 1,541 2,121 6,192 4,021 4,979 429
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2003 16,542 152 1,286 1,768 5,477 3,345 4,266 248
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2004 13,980 149 1,074 1,471 4,648 2,690 3,582 366
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2005 13,307 183 1,178 1,408 4,127 2,408 3,457 546
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2006 13,571 173 943 1,215 3,745 2,435 3,541 1,519
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2007 14,415 200 1,063 1,320 3,718 2,724 3,882 1,508
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2008 15,954 217 1,311 1,555 4,085 2,850 4,487 1,449
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2009 16,000 218 1,522 1,536 3,770 2,975 4,284 1,695
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2010 13,858 197 1,332 1,375 3,109 2,554 3,479 1,812
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2011 13,236 188 1,275 1,279 2,664 2,445 3,458 1,927
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2012 12,504 150 1,126 1,361 2,452 2,518 3,359 1,538
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2013 11,267 142 1,001 1,255 2,323 2,169 3,103 1,274
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2014 10,119 126 892 1,198 2,170 1,909 2,693 1,131
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2015 9,170 156 742 1,049 1,981 1,639 2,588 1,015
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2016 8,849 182 757 914 1,956 1,563 2,437 1,040
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2017 8,894 152 892 947 1,879 1,496 2,344 1,184
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2018 8,756 164 904 861 1,812 1,309 2,358 1,348
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2019 8,896 203 1,001 881 1,778 1,261 2,353 1,419
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2020 8,403 177 1,073 821 1,709 1,096 2,212 1,315
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2021 6,502 139 738 681 1,345 806 1,782 1,011
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2022 6,838 140 947 780 1,366 797 1,949 859
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2023 9,185 163 1,209 1,136 1,872 1,136 2,520 1,149
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2024 10,542 169 1,298 1,472 2,105 1,282 2,902 1,314
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2025 10,827 177 1,192 1,498 2,215 1,390 2,963 1,392
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