10 0 NO CHANGE
21 1 CUMULIFICATION
32 2 SLOW ELEVATION
43 3 RAPID ELEVATION
54 4 ELEVATION AND STRATIFICATION
65 5 SLOW LOWERING
76 6 RAPID LOWERING
87 7 STRATIFICATION
98 8 STRATIFICATION AND LOWERING
109 9 RAPID CHANGE
1115 15 MISSING VALUE
12