2012

9.3

2019

8.6

2008

5.6

1973

7.7

2004

6.6

1972

6.4

2018

8.5

2014

6.5

2021

8.7

2009

6.1

1980

8.4

2020

6.8

2020

9.4

2004

7.5

1993

5.0

2003

8.7

2016

5.6

2019

8.7

2013

5.4