2015

5.9

2011

7.5

2023

7.1

2009

8.5

2013

8.4

2005

8.3

2007

7.0

2009

6.2

2010

7.7

2023

7.8

2009

7.5

2021

8.7

6.8

1967

7.1

2018

6.3

2012

8.0

1973

6.8

1984

9.2