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Growth in number of boreholes
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Table 3.10 Total number of boreholes
| Years |
Cummulative growth |
| 1986 | 10000 |
| 1987 | 35000 |
| 1988 | 49000 |
| 1989 | 60000 |
| 1990 | 69000 |
| 1991 | 77500 |
| 1992 | 100000 |
| 1993 | 122000 |
| 1994 | 152000 |
| 1995 | 169000 |
| 1996 | 182000 |
| 1997 | 191000 |
| 1998 | 197000 |
| 1999 | 197811 |
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Site maintained by the Directorate Environmental Information and Reporting
Last update: October 1999
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