1984

7.1

2016

5.9

2001

8.9

2003

6.2

2012

4.8

2019

6.3

2000

5.2

2009

7.3

2007

7.5

1921

7.2

1998

7.2

2017

6.6

2008

6.8

2007

7.3

2016

4.9

1989

9.3

2020

5.6

2017

5.4

2006

6.9

2008

6.8