d_mean_age

Last change: 2020.2

CODE DESCRIPTION FROM_YEAR TO_YEAR
1 <= 20 1984  
2 21 - 40 1984  
3 41 - 60 1984  
4 61 - 80 1984  
5 81 - 100 1984  
6 101 - 120 1984  
7 > 120 1984  
8 Irregular stands 1984  
99 Unknown 1984