1986
100.0
100
1989
96.57
127.65
1990
65.74
75.09
1991
58.61
68.67
1992
45.82
66.03
1993
38.08
58.9
1994
18.31
37.76
1995
7.23
31.27
1996
7.76
22.5
1997
6.52
20.73
1998
6.82
25.97
1999
5.38
22.09
2000
3.27
20.21
2001
0.74
15.97
2002
-0.96
12.5
2003
1.97
13.1
2004
-1.05
9.71
2005
-0.4
7.11
2006
0.01
6.64
2007
-1.08
4.72
2008
-2.24
3.34
2009
-0.21
3.75
2010
-0.3
3.36
2011
-0.48
3.09
2012
0.29
3.39
2013
-0.73
2.24
2014
-0.34
2.36