2012

6.3

2020

6.5

2023

8.5

2007

5.7

2019

8.7

2017

7.3

2011

5.6

2012

7.2

2009

7.0

2008

7.5

1995

6.3

2009

6.1

2018

8.0

2017

5.9

2009

4.1

1981

7.4

1931

5.8

2009

6.6

2017

6.5