2015

5.9

1978

6.0

1999

6.6

1985

7.7

2006

6.6

2007

6.5

1984

7.2

2005

7.0

2011

9.8

2016

9.3

2005

7.8

2001

7.4

2007

0.0

2013

6.1

1979

7.3

2001

7.8

1957

6.0

2014

5.8

2002

7.0

2006

7.1