1959

5.9

2001

7.5

1991

7.8

1992

7.0

1985

7.5

2004

6.6

2009

7.0

2016

0.0

1989

6.6

2005

8.1

1997

5.5

2007

0.0

1985

6.8

2004

8.4

2001

7.2

1989

7.3

2002

0.0

2015

0.0

2000

7.5

1999

7.4