2020

7.2

2006

5.1

2000

6.7

1999

5.4

1972

6.7

1998

7.1

1963

5.8

1984

7.1

1983

6.7

2004

6.3

1980

7.3

1941

5.0

2007

6.0

2007

7.1

2008

6.5

2005

6.2

1974

8.0

1989

7.0

1990

5.8

1956

0.0