1927

8.1

1968

8.1

2000

8.2

1998

6.8

1982

6.6

1932

7.8

2001

7.2

2005

6.3

2002

7.3

2006

5.8

2006

7.5

2014

6.4

1990

7.2

2022

6.5

1997

6.8

2006

6.9

2004

5.7

2001

6.2

2003

7.3

2000

6.0