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Issued by:
Ohio Department of Development , Office of Strategic Research
P.O. Box 1001, Columbus, Ohio 43266-0101, Telephone: (614) 466-2115, March, 1997
| COHORTS | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 |
| 0-4 | 8,940 | 9,400 | 9,080 | 8,820 | 9,460 | 10,660 |
| 5-9 | 10,050 | 11,190 | 11,560 | 11,450 | 11,150 | 12,020 |
| 10-14 | 9,970 | 11,410 | 12,510 | 13,000 | 12,860 | 12,710 |
| 15-19 | 9,460 | 9,490 | 10,880 | 12,090 | 12,550 | 12,550 |
| 20-24 | 7,110 | 7,320 | 7,130 | 9,040 | 10,150 | 11,240 |
| 25-29 | 8,640 | 6,070 | 6,170 | 6,240 | 8,090 | 9,500 |
| 30-34 | 10,700 | 12,230 | 9,550 | 9,960 | 9,970 | 12,180 |
| 35-39 | 10,850 | 13,360 | 14,790 | 12,350 | 12,710 | 13,000 |
| 40-44 | 10,540 | 10,840 | 13,330 | 14,760 | 12,330 | 12,720 |
| 45-49 | 8,230 | 10,150 | 10,420 | 12,950 | 14,360 | 12,030 |
| 50-54 | 6,310 | 7,840 | 9,700 | 10,030 | 12,510 | 13,970 |
| 55-59 | 5,090 | 5,880 | 7,340 | 9,210 | 9,510 | 11,990 |
| 60-64 | 4,620 | 4,620 | 5,340 | 6,790 | 8,550 | 8,910 |
| 65-69 | 4,200 | 4,110 | 4,100 | 4,780 | 6,110 | 7,740 |
| 70-74 | 2,930 | 3,720 | 3,640 | 3,650 | 4,220 | 5,370 |
| 75-79 | 2,110 | 2,660 | 3,280 | 3,250 | 3,260 | 3,740 |
| 80-84 | 1,410 | 1,700 | 2,060 | 2,490 | 2,490 | 2,530 |
| 85+ | 1,210 | 2,030 | 2,350 | 2,660 | 2,890 | 3,080 |
| TOTAL | 122,350 | 134,020 | 143,230 | 153,510 | 163,180 | 175,920 |