2011

9.5

2017

6.9

1977

6.7

1999

4.6

2018

6.3

2003

8.7

2008

8.0

2021

6.2

1969

7.7

2006

5.1

2012

9.7

2019

6.6

2016

6.2

2006

6.8

2020

7.0

2020

6.5

1896

5.2

2007

8.1

2009

6.2

1984

7.2