18 1.0
19 1.0
20 1.1
21 1.0 1.1
22 1.2
23 1.1 1.2
24 1.3
25 1.0 1.2 1.3
26 1.4
27 1.3 1.4
28 1.1
29 1.2 1.4
30 1.5
01 1.3 1.5
02 2.0
03 1.0 1.4 1.5 2.0
04 2.1
05 2.0 2.1
06 1.1
07 1.2 1.5 2.1
08 2.2
09 1.3 2.0 2.2
10 2.3
11 1.4 2.1 2.2 2.3
12 2.3
13 2.4
14 2.1 2.3 2.4
15 1.5 2.2 2.4
16 2.1 2.3 2.4
17 2.0 2.4
18 2.2 2.3, 2.4