1996

5.8

2019

5.9

1992

4.7

2001

7.8

2004

7.2

1944

6.2

1950

7.7

2003

6.6

1993

6.9

2005

5.2

2006

6.2

1991

5.9

2009

6.3

2005

4.9

2008

7.3

2019

0.0

2012

7.1

2011

5.0

2011

6.4

1983

6.5