1997

7.7

1968

7.3

1970

7.1

2017

3.1

1967

7.3

1983

6.0

1969

7.1

1996

5.3

2000

6.5

1999

5.9

2005

5.9

2005

6.8

2005

7.7

1958

7.7

1991

9.0

2022

6.1

1981

7.0

1993

0.0

2011

6.3

1981

3.0