1972

6.0

1990

7.4

1986

7.7

1993

7.2

1997

6.2

2006

5.4

1987

8.1

1962

3.0

1997

6.6

1994

6.7

1977

6.8

1988

6.2

1977

6.6

1974

6.2

1970

4.1

1989

6.9

1974

5.7

2024

6.1

1996

6.5

1997

6.5