2008

6.1

1981

0.0

1981

7.0

2019

6.4

2002

7.2

1968

6.6

1996

5.9

2012

10.0

1991

5.0

2006

5.9

1977

6.9

2019

6.9

2014

5.8

2001

5.7

1998

6.0

2005

4.6

2017

6.3

1978

0.0

1979

0.0

2001

6.9