1990

7.4

1992

6.8

2003

7.1

1997

6.5

1976

7.1

1975

5.5

1937

0.0

2022

5.7

1924

8.1

1998

7.7

2006

6.7

1953

7.3

2004

7.3

2007

6.3

1994

7.0

1999

7.6

2005

2.5

1993

7.0

1914

6.5

1963

6.8