2010

6.8

1978

6.9

2012

7.1

2007

7.8

2008

6.5

1965

6.8

1987

6.0

2025

6.4

2018

6.0

1991

7.9

1982

5.2

1953

7.4

2008

7.3

2009

6.3

2015

6.3

2011

6.1

1982

5.9

2019

7.1