2001

6.2

1982

7.9

2013

7.7

2008

5.9

2017

7.4

2018

7.5

1943

8.2

2002

7.1

2014

7.8

2015

6.7

2017

7.2

1968

6.6

2007

7.5

1994

8.5

2016

5.9

2017

7.6

2019

8.1

2000

7.7

2012

6.6

2014

7.7