1954

7.6

1999

7.2

1972

7.1

2001

6.3

1954

6.8

1989

6.1

1999

3.0

1988

6.1

1979

7.3

2008

5.9

2007

5.8

2014

4.9

1977

6.2

2004

5.3

2022

6.4

1933

7.6

2006

5.9

1980

6.7

2005

4.5

1964

7.0