100
95
2060
90
2011
85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5
1
0.8
0.6
0.4
0.2
0
0
0
0.2
0.4
0.6
0.8
1
1996 8 1
2021 4.4 1
2031 2.5 1
2060 1.3 1
F.S.BE.
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