1997

7.0

1995

5.0

2013

7.9

1996

4.9

1986

6.2

1963

7.9

1964

7.3

1968

5.2

1994

6.8

1974

6.2

1980

7.0

1980

5.0

1985

1.0

1974

5.0

1990

6.5

1983

6.4

1992

6.3

1982

7.6

2002

7.0

1996

6.4

1994

6.0

1989

5.8

1993

3.5

1965

0.0

2013

7.5