1974

6.4

1993

4.9

1980

1.5

2000

6.1

1976

9.2

2014

8.0

2000

5.8

1977

0.0

1991

6.9

1981

6.3

2022

5.5

1982

6.2

2018

7.1

2010

7.5

1995

6.5