1998

6.8

1974

6.5

2019

0.0

2015

6.6

1965

7.0

2017

7.8

2017

4.7

2015

5.0

2012

5.5

1992

3.5

2012

6.5

2006

6.2

2016

4.8

2010

7.0

2008

2.8

2003

0.0