2000

5.8

2016

6.0

2001

0.0

1988

0.0

1994

0.0

1994

8.5

2003

5.3

1977

4.6

2009

3.0

2010

5.9

2003

4.9

2005

5.2

1998

5.9

1996

5.0

1961

6.3

1992

5.0

1999

5.4

2010

5.8

1981

4.9

2013

4.7