1999

7.3

1993

3.5

1987

4.5

2016

0.0

1988

7.4

2016

5.9

1997

0.0

2002

6.0

2017

6.7

2005

5.1

2006

8.0

2014

9.0

2006

6.2

1955

0.0

2020

4.4

1998

6.0

2017

6.3

1968

6.2

1985

4.1

2010

9.0