2014

7.0

2008

6.8

2011

6.3

2010

7.7

2007

7.3

2016

7.1

2001

5.2

1999

6.4

1977

6.8

2014

6.7

1979

6.2

2009

7.6

2021

6.1

1969

5.1

2010

7.7

1989

6.0

2014

6.1

2023

6.7

1989

6.4

2011

6.9