1999

8.0

2018

7.3

2019

7.1

2022

7.0

1966

6.0

2009

2.0

2009

2.3

2011

6.4

2013

4.3

2014

3.5

2012

0.0

2016

3.2

2016

4.8

1978

5.3

1982

0.0

1953

0.0

1995

6.9

1996

6.6