1984

7.6

2019

7.5

1990

5.6

2005

8.3

1991

6.2

2006

7.5

2004

8.6

2007

7.7

1987

7.7

2002

7.9

1985

6.2

1983

6.9

2011

8.2

1985

6.6

1986

5.7

1985

7.8

1988

4.9

1984

0.0