1967

9.0

1982

7.3

2014

6.5

2013

6.1

2010

6.5

2015

7.9

2018

7.2

1985

6.3

1963

5.6

2004

5.7

1986

6.0

2000

5.6

2011

6.7

2007

5.5

2016

8.0

2023

10.0

2016

6.4