Grade conversion

French	German
20 (best)	1,0 (best)
19	1,0 (best)
18	1,0 (best)
17	1,0 (best)
16	1,3
15	2,0
14	2,3
13	2,7
12	3,0
11	3,7
10	4,0
<10	5,0