2015

2.0

2010

6.8

2009

7.5

1967

6.9

2019

6.1

2013

8.3

2010

4.0

2009

3.0

2021

4.0

1987

8.4

2005

6.7

1985

7.6

2002

8.5

2011

7.4

2013

5.2

1993

7.1

2005

0.0

1984

7.2

1998

5.8

2007

7.9