2017

6.0

2002

5.2

2006

6.6

1974

5.7

1987

7.9

2002

7.5

1982

7.1

2000

7.7

1943

7.5

2010

6.3

2013

6.1

1999

5.6

2008

6.8

1989

6.9

1961

7.7

2006

6.5

1942

8.6

2004

7.0

2017

4.6

2011

7.1