Japanese and American Social Security Systems:
Grappling with the Future
| Ages | 1993 | 2000 | 2010 | 2020 |
| 15-29 | 15.3 | 15.9 | 12.2 | 11.6 |
| 30-54 | 36.2 | 35.4 | 34.6 | 33.4 |
| 55+ | 13.6 | 15.9 | 18.6 | 17.3 |
| Total | 65.1 | 67.2 | 65.4 | 62.7 |
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