2011

5.5

2018

6.4

2016

5.9

1985

5.3

1986

6.5

1992

6.9

2018

6.7

1965

7.4

1984

6.2

2018

5.0

2014

7.5

2017

7.6

2010

5.9

2020

6.1

1980

6.5

2016

6.4

1998

5.7

2012

5.5

2014

5.6

1989

4.9