1998

6.1

1991

6.6

1970

7.5

1978

0.0

2008

3.2

2008

5.3

1982

8.0

2006

6.0

1988

6.9

1984

7.4

1974

7.2

1985

6.3

1992

0.0

2002

5.9

2007

5.0

2001

5.8

1990

7.6

1973

7.1

1975

6.5

2024

9.5