1977–84 | 1985–96 | 1977–96 | ||||
---|---|---|---|---|---|---|
Cases | Controls | Cases | Controls | Cases | Controls | |
*Subcategory to all drivers. Drivers who had been driving different types of vehicles in the two censuses were included in both categories. Therefore, the sum of the number of drivers in the different driver categories differs from the number of all drivers. | ||||||
†Subcategory to other gainfully employed. Manual workers excluding drivers. | ||||||
All drivers | 571 | 1361 | 612 | 4711 | 1183 | 6072 |
Bus drivers* | 110 | 246 | 131 | 1093 | 241 | 1339 |
Taxi drivers* | 139 | 287 | 176 | 1149 | 315 | 1436 |
Lorry drivers* | 341 | 853 | 320 | 2628 | 661 | 3481 |
Other gainfully employed | 8919 | 29685 | 10262 | 100585 | 19181 | 130270 |
Other manual workers† | 3315 | 9954 | 3628 | 29639 | 6943 | 39593 |
Total (all drivers and other gainfully employed) | 9490 | 31046 | 10874 | 105296 | 20364 | 136342 |