2013

6.6

2006

6.8

2014

6.5

2015

8.4

2019

6.3

2004

6.5

2021

8.4

1974

4.8

2017

7.4

1990

7.8

2003

6.7

2023

6.7

1968

7.3

2009

10.0

1983

0.0

2018

8.2

2019

0.0

1990

8.0

1972

0.0

2017

8.7