1998

6.9

2020

4.2

2007

6.3

2017

7.5

2014

2.9

1986

0.0

2010

0.0

2010

8.0

2012

6.7

2007

5.1

1956

0.0

1997

6.5

2004

6.0

2001

9.0

1984

7.9

1969

7.1

1962

8.1

2013

10.0

1992

7.2

1990

0.0