1996

7.4

2009

7.5

1976

7.5

1990

7.2

2007

8.1

2002

8.2

2009

7.4

2007

6.9

1979

0.0

2003

8.0

2022

7.8

2004

7.3

2006

4.2

2005

6.3

2001

8.3

2005

8.3

2007

8.3

2012

3.9

2007

7.2

2006

7.2