2015

7.5

2016

7.3

2012

7.6

2006

7.4

1992

7.9

2006

7.1

2014

7.3

2004

7.9

2012

7.2

2005

7.0

1983

8.0

2015

6.3

2020

7.6

2008

7.7

1990

6.9

2014

7.3

2021

6.5

2011

7.2

1965

7.8

1978

7.0