Census Region

Year

West

Midwest

South

All Three Census Regions

2010

0.1819*

0.0081

<0.0001

<0.0001

2011

0.2709

0.0070

<0.0001

<0.0001

2012

0.4730

0.0239

<0.0001

<0.0001

2013

0.7034

0.0029

<0.0001

<0.0001

2014

0.4654

0.0038

<0.0001

<0.0001