1978

5.4

1976

7.1

1985

5.5

2006

3.5

2002

7.2

1974

4.3

1973

8.0

2010

5.8

1982

4.3

2023

0.0

1993

3.2

1992

6.2

1991

5.0

1989

6.0

2022

6.2