1969

8.0

2005

6.2

2009

5.1

2007

5.3

1999

7.5

2006

6.8

2017

6.5

2011

6.9

2011

0.0

2023

0.0

2018

4.0

1976

5.4

2015

5.0

2021

4.6

1974

3.5

2017

3.8

1972

3.7

1999

6.1

2016

5.7

2013

5.2