2005

7.2

2000

8.2

1932

7.8

2004

6.5

2017

6.7

2017

4.7

1998

6.8

2000

6.0

1992

8.1

1993

6.2

2006

6.6

2023

5.0

1971

7.2

2007

6.2

1985

6.7

2006

7.5

2016

4.6

2003

6.3

2002

6.3

1997

4.8