2002

7.1

1981

6.3

2012

6.0

1999

6.9

1993

7.2

2003

7.1

2003

6.8

2003

6.1

2000

5.0

1986

7.3

2002

6.1

2002

0.0

1979

6.2

1978

5.2

1984

6.7

1984

6.8

1995

6.3

1977

7.4

1998

6.7