1994

6.0

1996

5.9

1977

5.9

1985

6.2

1970

5.8

1975

4.2

1981

6.4

1990

6.8

1967

6.6

1985

4.0

2024

10.0

2015

3.5

2016

1.0

1998

1.0

0.0

1997

7.6

2006

6.5

1993

7.1

1969

5.1

1989

6.8