20
2.0 1.5
1.5 1.0
1.0 0.8
0.9 0.75
0.8 0.6
0.7 0.3
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8
1.0 0.8