2010

8.1

2007

7.5

2003

7.7

2010

8.3

2005

6.7

2008

7.6

1987

5.7

2007

4.5

1988

7.2

2011

8.6

2013

0.0

1967

2.5

1967

4.2

2012

7.3

1984

7.3

2017

4.8

2019

8.1

2017

0.0

2012

5.0

2021

4.0