2011

6.2

2008

5.8

2012

2.8

2017

7.2

2010

8.4

2000

8.2

2007

5.6

2002

7.3

1960

8.4

2017

7.8

2008

8.5

2015

7.5

2012

6.3

2004

7.4

2019

8.1

1993

8.6

2001

7.8

2016

8.1

1993

7.4

2010

7.6