2018

6.7

1986

7.9

2019

8.1

2013

0.0

1989

5.9

2004

7.2

2017

6.2

2008

3.8

1996

7.1

2013

6.3

1994

6.6

2016

7.0

1969

1.0

2011

2.0

2014

6.9

2006

5.7

2007

6.3

1988

6.8

1977

5.0

2008

6.0