2002

6.6

1993

6.0

2000

6.5

1999

0.0

2006

7.0

1985

8.1

2008

5.9

2005

5.2

2011

0.0

2017

4.9

1957

0.0

2015

6.0

1990

6.5

1981

10.0

1989

8.0

1978

5.0

1991

5.8

2018

7.5

1999

6.0

1989

1.0