1975

5.2

1978

7.1

1984

7.2

1979

6.9

1978

5.8

2018

0.0

1971

8.1

1971

0.0

1974

6.1

1999

1.8

1996

6.9

2018

6.2

1985

7.4

1991

5.3

1984

4.8

1980

6.3

1978

7.2

1979

7.2

1991

6.4

2024

7.0