1961

5.0

2016

6.6

2015

8.4

2010

7.3

2020

4.7

2017

8.1

2003

7.7

1965

6.4

1966

7.0

2010

8.0

2010

7.0

2018

7.1

2018

6.3

1986

6.3

1980

5.9

2019

6.4

2021

5.5

2009

7.6

2013

6.5

5.8