2009

7.8

2005

4.9

1997

6.5

1994

6.0

1946

8.3

2006

6.3

2013

5.7

1998

7.3

2000

6.0

2004

4.0

2006

6.5

2008

6.6

2020

2.0

2011

4.9

2019

0.0

2013

3.2

1980

6.8

2017

7.2

1999

7.0

2015

5.0