1977

5.0

2006

5.2

2009

8.5

2001

6.1

2019

7.1

2010

7.0

2008

7.5

2004

7.3

2015

5.4

1979

7.0

1992

6.2

2008

5.6

1996

6.7

2007

6.2

2025

10.0

2006

6.9

2008

5.2

2010

6.9

2015

7.0

2004

7.0