1936

7.3

1996

5.8

1998

6.0

1988

6.1

1992

6.3

2003

6.2

1999

5.9

1999

6.2

2001

6.0

1994

5.5

1996

6.9

1994

5.2

1935

6.3

2000

4.7

1941

5.1

1981

6.8

2008

5.3

2008

5.8

2020

6.1

1942

6.9