1991

7.2

1985

0.0

1989

5.6

1986

6.0

1992

5.2

1978

7.7

2015

0.0

2003

6.0

1998

7.6

2010

0.0

1985

5.0

1997

7.5

1970

4.8

1977

5.5

1959

3.7

1970

6.1

1974

8.1

1994

0.0

2004

0.0

1974

0.0

1972

0.0

1982

6.3

1978

0.0

1973

6.4

1976

7.0

1964

6.3

1968

4.5

1990

7.0

2020

7.1