2018

7.9

2013

6.4

2014

5.5

2015

6.9

2015

6.6

2017

7.0

2016

6.6

2019

0.0

1952

6.5

1988

6.0

2005

8.0

2015

5.4

2015

8.7

1967

0.0

2002

8.5

1994

7.3

1995

0.0

1983

0.0

2019

5.5

1998

6.0