+1 – 100%
+2 – 85%
+3 – 80%
+4 – 75%
+5 – 70%
+6 – 65%
+7 – 60%
+8 – 55%
+9 – 50%
+10 – 45%
+11 – 40%
+12 – 35%
+13 – 30%
+14 – 25%
+15 - 20%
+16 - 20%
+17 - 20%
+18 - 20%
+19 - 20%
+20 - 20%