2015

6.5

0.0

2006

5.5

1999

6.2

2005

5.1

1937

7.1

2007

4.0

2017

4.5

2009

8.3

1986

7.6

2008

6.8

1993

6.1

1988

6.4

1939

7.2

1952

6.7

1951

7.2

1986

6.7

2000

6.1

2007

10.0

2005

7.4