1998

6.7

2015

7.1

2001

8.9

1978

7.3

1984

9.1

1995

9.7

2007

7.5

1983

8.1

1975

8.1

1966

8.4

1975

6.0

2017

10.0

2023

0.0

1984

7.7

1980

8.0

1972

7.8

2004

8.8

1993

7.8

1994

8.3

2014

0.0