Census and health conditions of young street trees in Brussels metropolitan area (new plantations)
| Year | Total of trees | Healthy | Decaying Dead | Number | Percent | ||
|---|---|---|---|---|---|---|---|
| Number | Percent | Number | Percent | ||||
| 1974 | 2,300 | 2,088 | 90.8 | 62 | 2.7 | 150 | 6.5 |
| 1975 | 3,710 | 3,176 | 85.6 | 152 | 4.1 | 382 | 10.3 |
| 1976 | 3,148 | 2,389 | 75.8 | 138 | 4.4 | 621 | 19.7 |
| 1977 | 2,463 | 1,914 | 77.7 | 136 | 13.6 | 213 | 8.7 |