1983

6.4

1999

5.3

2006

5.1

1973

5.6

2014

0.0

1966

5.0

1955

7.5

2016

6.4

1949

3.5

1996

7.2

2002

8.4

1993

8.6

1943

8.2

1981

8.1

2001

7.4

1998

8.2

1982

7.6

1966

7.3

1961

8.0

1957

7.8