1972

6.6

1998

7.9

1992

7.4

1995

7.3

2006

0.0

1982

7.1

2013

7.4

1993

6.6

1997

7.2

2025

0.0

2002

6.0

1967

7.7

2013

8.1

2013

6.2

2017

9.0

2005

8.7

1993

6.6

1998

7.4

2025

4.0

2007

6.6