| 西 暦 | データ数 | 数／日 | % | 累計(%) | 備 考 |
| 1999 3月 | * 119 | 9.2 | 0.2 | 0.2 | * 1-13日 |
| 2 | 291 | 10.4 | 0.4 | 0.6 | |
| 1 | 277 | 8.9 | 0.4 | 1.0 | |
| 1999 | * 687 | 9.5 | 1.0 | | * 1-12月推計: 3,483 |
| 1998 | 2,902 | 8.0 | 4.4 | 5.4 | 平成10 |
| 1997 | 2,531 | 6.9 | 3.8 | 9.2 | |
| 1996 | 3,284 | 9.0 | 4.9 | 14.1 | |
| 1995 | 3,086 | 8.5 | 4.6 | 18.7 | |
| 1994 | 1,432 | 3.9 | 2.1 | 20.9 | |
| 1993 | 875 | 2.4 | 1.3 | 22.2 | 平成5 |
| 1992 | 815 | 2.2 | 1.2 | 23.4 | |
| 1991 | 527 | 1.4 | 0.8 | 24.2 | |
| 1990 | 469 | 1.3 | 0.7 | 24.9 | |
| 1990s | 16,608 | 4.9 | 24.9 | | 1990-99 |
| 1980s | 3,296 | 0.9 | 4.9 | 29.9 | 1989– 平成 |
| 70s | 3,318 | 0.9 | 5.0 | 34.8 | |
| 60s | 3,400 | 0.9 | 5.1 | 39.9 | |
| 50s | 3,188 | 0.9 | 4.8 | 44.7 | |
| 40s | 3,973 | 1.1 | 6.0 | 50.7 | 1939-45 2次大戦 |
| 30s | 3,757 | 1.0 | 5.6 | 56.3 | |
| 20s | 3,470 | 0.9 | 5.2 | 61.5 | 1926– 昭和 |
| 10s | 3,135 | 0.9 | 4.7 | 66.2 | 1912– 大正 |
| 1900s | 2,634 | 0.7 | 4.0 | 70.2 | 明治 |
| 1900s | 46,779 | 1.3 | 70.2 | | 1900-99 |
| 1800s | 6,692 | 0.2 | 10.0 | 80.2 | 1868– 明治 |
| 1700s | 2,439 | 0.1 | 3.7 | 83.9 | |
| 1600s | 2,190 | 0.1 | 3.3 | 87.2 | 1603– 江戸 |
| 1500s | 2,469 | 0.1 | 3.7 | 90.9 | |
| 1400s | 910 | 0.02 | 1.4 | 92.2 | |
| 1300s | 847 | 0.02 | 1.3 | 93.5 | 1336– 室町 |
| 1200s | 720 | 0.02 | 1.1 | 94.6 | |
| 1100s | 430 | 0.01 | 0.6 | 95.2 | 1185– 鎌倉 |
| 1000s | 222 | 0.01 | 0.3 | 95.5 | 平安 |
| 1-999 | 1,306 | 0.004 | 2.0 | 97.5 | 1-10世紀 |
| A.D. | 65,004 | 0.1 | 97.5 | | 1-1999 |
| B.C. | 1,662 | - | 2.5 | 100.0 | 紀元前 |
| 合計 | 66,666 | - | 100.0 | | |
| 西 暦 | データ数 | 数／日 | % | 累計(%) | 備 考 |
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