d_extent

Last change: 2019.12

for further information see Explanatory Item: 305

CODE DESCRIPTION FROM_YEAR TO_YEAR
0 0% 1984  
1 1-10% 1984  
2 11-20% 1984  
3 21-40% 1984  
4 41-60% 1984  
5 61-80% 1984  
6 81-99% 1984  
7 100% 1984  
100 slight 1984 2005
200 moderate 1984 2005
300 heavy 1984 2005
999 information not available 1984 2005