2009

8.5

1939

5.0

2020

6.0

2007

5.7

1985

6.9

1979

5.2

2020

7.4

1999

4.4

2003

4.3

1983

6.5

1992

6.2

1962

4.0

1960

7.3

1973

2.7

1986

4.1

1940

5.0