21	db
-12	27.6
-11	28.7
-10	29.4
-9	30.1
-8	30.9
-7	31.6
-6	31.9
-5	32.2
-4	32.4
-3	32.5
-2	32.5
-1	32.5
0	32.4
1	32.3
2	32.1
3	32
4	31.8
5	31.5
6	31.2
7	31
8	30.9