2008

6.6

2006

6.3

1946

8.3

2011

4.9

1999

7.0

2004

4.0

2005

4.8

1994

6.0

1997

6.5

2013

3.2

2006

6.5

2019

0.0

1998

7.3

2013

5.7

2000

6.0

1980

6.8

2019

7.3

2009

7.8

2015

5.0

2015

6.0