1963

2.3

1942

6.3

1961

4.3

2021

7.3

2016

6.9

1994

6.0

1985

6.7

1967

7.3

1984

6.8

1997

5.2

1981

7.4

1995

7.2

1948

4.8

1992

6.0

1999

6.4

2003

6.5

1996

5.3

2006

6.4

1979

6.7

1997

5.6