1995

7.3

2008

5.2

2007

6.9

1941

7.0

2005

7.4

2006

7.1

1995

5.2

2002

5.4

2010

7.1

2001

5.2

2019

6.8

2009

5.9

1977

8.2

2003

7.4

1942

5.8

2020

7.2

1980

8.4

2019

6.9

2017

6.8

2003

7.2