2010

8.2

2005

5.5

1988

6.2

1989

5.3

2001

5.1

1991

5.5

2000

5.3

1983

6.0

1986

5.6

1988

5.2

1988

5.8

1992

5.9

2022

7.2

2011

0.0

2016

6.0

2016

6.4

2022

7.7

1940

4.3

1978

7.6

1971

7.5