2012

9.7

2011

9.1

2009

6.6

2006

5.6

1998

7.0

1998

6.1

1945

7.2

2010

5.5

2009

5.8

2014

7.5

2020

7.2

1989

5.3

2013

7.0

2019

5.4

2000

5.5

2001

6.0

2007

4.8

1990

5.9

2011

9.7

1981

7.1