7.8

1973

7.2

2023

6.5

2008

7.7

2015

7.4

2018

6.0

5.6

2006

6.1

2001

9.4

2011

6.5

2023

6.2

2014

5.6

2014

6.0

2020

6.7

2005

8.7

4.6

1985

6.1

2013

9.0

1950

10.0

2009

5.3