2016

5.5

2008

4.8

1942

6.0

1990

5.7

2014

6.5

2002

5.3

1977

6.8

2016

5.8

2004

5.9

2005

7.1

1985

6.0

2015

6.8

1997

5.7

2000

6.7

2017

7.1

2015

4.9

1953

8.0

2006

7.5

1974

8.6

2003

7.2