1973

7.0

2000

4.4

1973

5.5

2003

4.5

1975

4.9

1986

4.2

1977

5.1

1977

5.6

1971

4.7

1992

4.2

1969

4.1

2005

4.7

1974

6.5

1976

4.4

1972

3.1

1980

5.5

1970

4.3

2003

3.6

1974

2.5

1995

3.5