2007

8.5

2017

8.1

2017

7.9

1999

8.7

1995

8.6

2011

8.6

1996

7.7

2003

7.5

2021

8.5

1960

7.4

2019

8.2

2008

8.9

2013

8.7

2008

8.3

1992

8.5

1999

7.4

1997

8.4

2011

8.4

1990

6.9

2014

8.3