1969

7.1

1983

0.0

1988

0.0

2008

9.0

2004

7.3

1974

8.8

2006

6.7

2002

7.5

1987

0.0

1995

8.0

1996

7.0

2009

8.0

1993

7.3

2008

6.4

1972

7.7

2008

7.5

1999

6.6

2011

7.5

2009

5.8

2024

6.6