1935

4.5

1919

6.0

1982

6.6

1983

7.1

1956

6.6

2001

6.1

2005

5.4

1968

7.3

1996

6.2

2004

6.3

1990

6.8

1972

6.8

1946

6.0

1978

7.5

2001

5.8

2016

5.7

2008

6.4

1983

4.6

2008

6.5

1996

5.3