2001

8.2

2005

9.0

1996

6.4

2001

6.6

1978

0.0

1967

7.4

2002

8.0

1984

7.1

1987

0.0

1972

7.0

1999

0.0

2006

7.4

1991

4.0

2005

6.6

2007

7.3

1956

0.0

1990

7.6

1997

6.6

2015

0.0

2012

1.0