Calendar year | |||||
---|---|---|---|---|---|
Age | 1951–58 | 1959–68 | 1969–78 | 1979–88 | Total |
20–29 | 38.8 | 134.6 | 146.9 | 1.2 | 321.5 |
30–39 | 123.1 | 474.1 | 651.7 | 187.9 | 1436.8 |
40–49 | 205.3 | 547.1 | 1081.1 | 665.4 | 2498.9 |
50–59 | 55.1 | 388.0 | 782.0 | 1056.3 | 2281.4 |
60–69 | – | 65.7 | 358.7 | 710.5 | 1134.9 |
70– | – | – | 53.4 | 316.1 | 369.5 |
Total person-years | 422.3 | 1609.5 | 3073.9 | 2937.4 | 8043.0 |
Number of workers | 72 | 283 | 314 | 296 |