2006

6.9

2003

5.4

2008

3.2

1988

7.3

2000

6.6

2007

6.3

2002

7.0

1995

5.4

1992

5.5

2017

7.0

1998

6.4

1995

5.8

1979

6.7

2006

7.6

1993

6.8

1981

7.4

2018

3.8

1984

6.8

1995

7.9

1985

6.2