1998

6.7

1995

6.8

1997

6.2

2003

6.5

1984

5.2

1968

7.0

2000

4.6

1992

7.2

1985

5.5

2023

6.5

1962

7.4

1973

4.0

1984

3.7

1978

5.0

1970

7.0

1971

0.0

1986

0.0

2005

7.1

1977

7.2

1991

7.3