1988

5.7

2004

10.0

2006

5.0

1969

8.3

2018

0.0

1978

7.3

1969

7.4

2006

8.1

2001

5.6

1991

6.8

1997

7.5

2009

8.0

1999

7.6

1985

6.3

1972

0.0

1996

7.0

2015

6.4

0.0

2003

6.6

2000

8.0