2014

7.0

2011

7.1

2009

5.8

2008

7.6

1994

8.7

2019

8.5

1971

8.2

1996

7.9

2013

7.5

2017

7.6

1975

8.4

1972

8.7

2014

8.5

2009

7.3

2000

7.1

1983

7.9

2008

8.5

2022

7.1

2010

7.7

1997

7.9