1996

6.4

2005

8.0

1970

7.1

1964

7.1

2024

0.0

1988

6.3

2001

7.3

2000

0.0

2003

5.9

2009

6.6

1994

7.6

1993

7.0

2007

4.0

1980

6.6

2007

5.0

1972

5.7

2014

6.7

1997

5.9

2017

6.9

2010

3.9