1973
11
-61.2
-56.5
20
-60.7
-56.1
15
-59.5
-51.6
10
-59
-48.8
-58.9
-47.8
-58.5
-45.1
-58.4
-44.1
-58.2
-42.9
-57.5
-37.9
5
-57.4
-37
4
-57.3
-36.5
-57
-34.8
6
-56.9
-34.1
-33.8
7
-56.4
-32.9
-54.6
-30.2
2
-54.5
-29.5
-55
-14.8
8
-55.1
-11.6
-55.3
-6.3
-55.2
-3.3
-55.4
-0.9
1974
-46
-48.1
0
-46.6
-48.3
-47.2
-48.4
-47.6
-48.6
-48.7
-49.3
-48.9
-49.9
-50.4
-49.1
-51.2
-51.7
-49.4
-52.1
-49.5
-52.6
-49.6
-53.3
-54
-50.3
-50.5
-50.8
-55.6
-51.1
-56.2
-51.3
-56.7
-57.2
-51.9
-52.2
-52.5
-52.9
-53.1
-60.1
-53.5
-60.6
-53.6
-61.4
-61.1
1
-61.3
-54.1
-61.6
-54.8
-61.8
-62.1
-56.6
3
-62.2
-57.9
-62.3
-58.8
13
-58.1
-57.1
-62
-56.3
-55.5
-61.7
-61.5
-52.8
1977
-46.2
-47.1
-50.2
-50
-48.5
-49.7
-49.2
-49.8
-50.6
-51.4
-51.8
-50.1
-52.3
-50.7
-51
-57.6
-53.2
-53.8
-59.2
-59.6
-60.5
9
-60.9
-55.9
29
14
47
-62.4
-58.3
41
1981
-0.1
-0.4
-0.8
-1.1
-1.6
-54.9
-2.4
-3.4
-54.7
-3.7
-4
-54.2
-4.4
-54.4
-4.7
-53.7
-5
-5.5
-53.4
-6.1
-6.7
-53
-7
-7.7
-8.4
-8.9
-9.3
-52.7
-9.9
-10.6
-52.4
-12.1
-12.4
-12.7
-13.1
-13.5
-51.5
-13.8
-14.2
-14.6
-50.9
-15.1
-15.6
-16.2
-16.6
-17.3
-18
-18.7
-19.6
-49
-20.6
-21.2
-22.1
-48
-22.6
1985
-61
-47.5
1986
-46.9
-52
-48.2
1987
-39.9
-43
-47
-38.3
-47.4
-37.5
-47.9
-35.7
-34.7
-32.5
40
-31.4
-30.1
-29.1
-27.8
-26.8
-25.6
-24.6
-23.4
-22.3
-21.6
-19.9
24
-53.9
-18.8
-17.7
27
-16.5
-15.3
-14.1
17
-11.4
28
-10.1
25
-8.7
-55.7
-7.4
-6
18
-4.6
32
-2
-0.7
1991
-56
-56.8
-59.3
-60
48
-58.7
30
19
-60.3
-45.9
-44.5
-59.9
96
-41.6
-40.6
-40
-39.2
-58
-37.8
-36.6
-35.2
-31.3
-31.8
26
-32.4
-31.1
-29.9
-28.6
-27.3
-25.9
-24.5
-23.2
-21.9
-19.2
-17.9
-13.9
-12.8
-10.4
64
-8.8
-8.2
-6.9
-6.2
-59.7
-5.6
-4.8
-4.3
-60.8
-4.1
-3.6
-2.7
-1.9
-0.5
-62.6
-0.2
-64.2
-68.6
-68.3
-0.3
-68
-1
-3.9
-68.1
-5.1
-68.2
-68.5
-8
-68.7
-9
-69
-9.8
-69.4
-69.8
-11.7
-70.3
-12.5
-70.6
-70.9
-13
16
-71.3
-13.4
51
-71.9
-72
42
-72.1
-16.3
-72.4
3.2
10.8
13.5
14.4
15.9
16.2
19.6
20.7
30.4
36.4
-55.8
37.6
0.1
1.6
4.4
-63.1
-63.6
-64.7
0.4
-65.5
0.6
-66.1
0.8
-66.6
1.5
-67.3
-67.9
1.7
-68.9
1.9
-69.1
1.4
1.3
1.2
1.1
0.9
0.7
0.5
0.3
0.2
-68.8