TABLE 9.
Average arithmetic mean bone marrow doses (mGy) |
|||||
---|---|---|---|---|---|
First year of work |
Year of completion of work |
||||
1986 | 1987 | 1988 | 1989 | 1990 | |
1986 | 95 | 41 | 128 | 215 | 221 |
1987 | 49 | 62 | 155 | 35 | |
1988 | 28 | 12 | |||
1989 | 48 | 7 | |||
1990 | 34 | ||||
All | 95 | 46 | 59 | 105 | 169 |
See Table 3 for the numbers of subjects in each category.