2009

7.7

2023

8.8

2006

7.4

1999

7.9

1996

6.8

1968

5.7

2001

8.6

2004

7.1

1998

9.0

2012

7.3

2015

7.4

2011

6.0

1999

7.0

2015

7.4

2011

7.0

2014

6.2

2011

7.2

1998

7.2

2008

7.2

1980

8.6