2001

7.8

2004

7.3

1999

7.4

1938

7.1

2005

7.1

2016

6.2

1977

6.5

1976

7.0

2017

6.8

1955

6.8

2006

7.5

2003

6.7

2025

4.3

2023

6.3

2005

6.2

1963

7.2

2002

6.0

1989

7.3

1990

6.9

2010

6.4