2017

6.6

2002

6.9

1999

7.7

2019

8.5

2014

4.9

2007

6.3

1994

7.1

2002

8.0

1986

7.5

1996

6.6

1917

0.0

2001

6.8

2009

5.7

1995

6.9

1952

6.7

1994

6.6

2017

5.9

2008

0.0

2011

0.8

2014

4.4