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Dr. Roger Thomas
asked the Secretary of State for Wales how many manual workers have been employed by the Welsh water authority on a yearly basis since 1974.
Mr. Wyn Roberts
The number employed by the Welsh water authority on 31 March in each year was :
| 1975 | 2901 |
| 1976 | 2949 |
| 1977 | 2973 |
| 1978 | 2950 |
| 1979 | 2971 |
| 1980 | 2814 |