2013

6.0

1984

7.0

2000

5.5

1994

7.4

1988

6.2

1997

7.9

2009

5.9

1988

6.2

1993

6.6

1995

4.6

1996

6.9

1988

6.5

2010

7.5

2003

6.3

1985

7.2

1981

6.3

1996

5.3

2021

6.3

2007

7.7

1994

6.2