2015

8.3

2021

7.8

1949

7.5

2022

10.0

2016

6.5

2016

5.9

2006

6.5

2003

5.2

1968

7.4

2009

6.6

2012

6.9

2016

4.4

2014

7.7

2018

6.6

2016

6.0

2017

8.1

2004

7.1

2016

6.8

1993

5.7

1989

5.1