1975

6.1

1928

6.9

1931

8.3

1965

7.5

2019

3.3

2001

7.0

1960

8.2

1999

7.7

1971

7.6

2002

7.6

2004

8.0

2006

7.0

2016

5.0

2006

8.0

1977

7.1

1946

8.3

1987

7.6

2003

7.3

2007

7.2

1996

7.0