1972

6.7

2003

6.4

2002

6.7

1970

5.2

1970

6.5

2002

7.3

1971

6.6

2018

7.4

1996

5.5

2001

7.0

1925

6.9

1972

6.6

1956

7.5

1965

7.3

1966

6.8

1969

6.6

1970

6.5

1997

5.7

1994

6.6

1967

6.8