2008

3.6

1981

6.7

2008

6.3

1977

6.8

1981

5.5

2008

2.8

2009

6.4

1979

6.8

2003

6.3

2001

4.1

1984

4.7

1995

6.6

1990

5.5

1985

6.5

2021

5.8

1986

3.4

1987

6.2

1981

6.7

1980

6.5

2010

7.2

2000

6.0

1996

4.5