1982

5.8

2017

6.1

2007

6.7

2015

8.1

2004

9.9

2007

7.6

2006

4.9

2000

5.1

2013

8.4

2003

7.2

2014

7.4

2020

7.3

1975

6.5

2001

6.0

2017

7.3

2003

6.1

2021

7.8

2000

7.1

2008

7.6

1979

6.1