1993

6.6

1976

6.0

2008

0.0

2005

0.0

2007

6.1

2011

7.3

1992

7.0

1991

6.7

2010

6.0

2004

0.0

2008

7.6

1993

6.0

1982

4.5

1975

1.0

1986

6.3

1988

6.8

1998

7.0

1985

0.0