2005

6.8

1956

7.6

2007

5.6

1987

6.9

2000

6.5

1994

4.3

1993

7.7

1991

6.7

2007

7.3

1931

7.5

1952

7.3

1955

7.9

2002

7.3

2001

4.7

2004

6.1

1977

6.8

1949

6.9

2007

6.6

2017

6.6

1932

7.4