2005

9.0

2009

7.4

1970

6.0

2020

7.3

2017

6.9

1967

6.5

8.2

1965

7.1

2008

5.5

2000

5.1

2001

9.9

1989

4.9

2020

5.9

1989

6.0

2010

6.0

2000

6.7

2002

6.3

2006

7.1

2011

5.5

2015

7.4