1972

7.2

1991

6.6

2017

5.0

1995

6.5

2002

6.9

1982

7.6

1970

3.0

2004

7.9

2022

6.9

2004

8.0

2002

7.1

1993

7.7

1994

7.5

2008

0.0

2013

6.3

0.0

1999

6.8

2008

9.5

1978

7.5

1984

6.6