1998

7.3

1961

6.1

2005

6.6

2007

5.3

2001

6.0

2006

4.4

2014

4.4

2005

6.6

1999

0.0

2008

6.6

1988

7.1

1991

6.7

2000

7.0

2012

0.0

1970

6.6

1938

5.1

2018

2.0

1961

0.0

2017

7.0

1997

7.0