2008

5.7

1998

4.8

2001

6.6

2016

5.6

2013

5.9

1976

7.3

2005

8.3

2012

5.6

2011

6.9

1965

6.8

1964

7.0

1980

7.3

2001

6.1

2017

6.1

2016

6.9

2017

9.4

2010

5.0

2017

7.7

2021

7.7

2012

5.0