2011

8.1

2010

8.0

2015

8.2

2021

8.5

1959

8.4

2001

7.8

1979

6.8

2014

7.8

2000

8.0

2011

8.3

2010

8.1

1984

7.4

1999

7.7

2003

7.6

2004

8.1

2021

8.0

2025

7.8

2014

6.7

2009

7.7

2013

6.8