1950
5.1
8.9
1955
5.1
9.3
1960
5.0
9.8
1965
5.1
10.6
1970
5.3
11.6
1975
5.5
12.5
1980
5.8
13.3
1985
5.9
12.8
1990
6.1
13.8
1995
6.5
14.7
2000
6.8
15.7
2005
7.3
16.7
2010
7.6
17.5
2015
8.3
8.3
19.2
19.2
19.2
19.2
2020
9.3
20.8
20.9
20.6
2025
10.4
22.6
23.1
22.2
2030
11.7
24.7
25.5
23.9
2035
13.0
26.7
28.0
25.5
2040
14.2
28.1
29.9
26.4
2045
15.0
29.1
31.5
27.0
2050
16.0
29.8
32.9
27.1
2055
17.2
30.2
34.1
26.9
2060
18.1
30.3
35.1
26.3
2065
18.6
30.1
35.8
25.5
2070
19.1
30.0
36.7
24.7
2075
19.7
30.2
38.1
24.2
2080
20.4
30.5
39.7
23.7
2085
21.0
30.8
40.5
23.8
2090
21.6
31.1
40.8
24.2
2095
22.2
31.4
40.9
24.6
2100
22.7
31.7
41.0
24.8