1973
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2 --- 1 1 1,2 --- --- 1 1 1 --- --- ---
3 1 1 1 --- --- --- --- --- --- 1 --- ---
4 1 1 1,2 1,2 --- --- --- --- --- --- --- ---
5 1,2 --- 1 1 --- --- 1 1,2 --- 1,2 --- ---
6 --- --- 1 1 --- --- 1,2 --- 1 --- --- ---
7 1 1 --- --- --- --- 1 1 --- 1 --- ---
8 1 --- 1 1 --- --- 1 --- 1 1 --- ---
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10 --- 1 1,2 --- --- --- --- --- --- --- --- 1
11 --- 1 --- 1 --- --- --- --- --- --- --- 1
12 1 --- --- --- --- 1 --- --- --- --- --- ---
13 --- 1 1 1 --- 1 --- --- --- --- --- 1
14 1 1 1 --- --- 1,2 --- --- --- --- --- 1
15 --- --- 1 --- --- 1 --- --- --- --- --- 1
16 --- --- 1 --- --- --- --- --- 1 --- --- ---
17 1 --- 1 --- --- --- --- --- --- --- --- ---
18 --- 1 1 --- --- --- --- --- 1,2 --- 1 ---
19 1 --- --- 1,2 --- --- --- --- 1 --- --- ---
20 1 1 1 --- --- --- --- --- 1 --- --- 1
21 1 1 --- 1 --- --- --- --- 1 --- --- ---
22 1 --- 1 1 --- --- --- 1 --- --- --- ---
23 --- 1 --- --- 1 --- --- --- 1 --- 1 ---
24 --- --- --- --- 1 --- 1 --- 1 --- --- 1
25 1 1 --- --- --- 1,2 --- --- --- --- 1 1
26 1 1 1 --- 1 1 --- --- --- --- 1 1
27 1 --- --- --- 1 --- --- --- 1 --- --- ---
28 --- 1 --- --- --- 1 --- 1 1 1 1 ---
29 ---   1 --- --- 1 1 --- 1 --- --- ---
30 ---   --- --- --- --- 1 1 --- 1 --- ---
31 ---   ---   ---   --- ---   1,2   ---