d_mean_age_bd
| CODE | DESCRIPTION | FROM_YEAR | TO_YEAR |
|---|---|---|---|
| 1 | 0-20 years | 1984 | |
| 2 | 21-40 years | 1984 | |
| 3 | 41-60 years | 1984 | |
| 4 | 61-80 years | 1984 | |
| 5 | 81-100 years | 1984 | |
| 6 | 101- 120 years | 1984 | |
| 7 | >120 years (corresponds to the yearly measured mean age of the crown condition survey) | 1984 | |
| 8 | Irregular stands | 1984 | |
| 9 | Unknown | 1984 |