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Table 4 number and percentage of all census areas (US counties) having statistically significantly different estimates for the same geographic areas across consecutive and non-consecutive multi-year data cycles (95 % confidence level)

From: Reliability of the American Community Survey for unintentional drowning and submersion injury surveillance: a comprehensive assessment of 10 socioeconomic indicators derived from the 2006–2013 annual and multi-year data cycles

 ACS 3-year data cyclesACS 5-year data cycles
 Maximum overlapMinimum overlapMaximum overlapMiximum overlap
 2009 vs 20102010 vs 20112011 vs 20122012 vs 20132009 vs 20112010 vs 20122011 vs 20132009 vs 20102010 vs 20112011 vs 20122012 vs 20132009 vs 2013
 N%N%N%N%N%N%N%N%N%N%N%N%
US residency less than 5 years1327.11467.91317.11307.01136.11005.4693.72678.534010.82688.532110.21655.2
College/postgraduate degree1679.01266.81367.41689.11628.71719.220611.046414.83119.932010.236711.771322.7
High school graduates25814.01367.41176.31528.219710.71256.824413.243013.743413.837612.02758.757018.1
African American------------------------------------------------
Hispanic------------------------------------------------
Non-white------------------------------------------------
Gini coefficient935.0985.31156.21317.133918.437637620.31508.11665.32176.924732110.21665.3
Median household income1689.11397.51307.01558.448926.5114461.91759.554317.370522.435611.32668.579725.4
Unemployment76641.465635.524313.1164288.897352.749726.9130370.597531.087527.865820.9292893.2260182.8
County population135173.168136.868537.066435.9128169.481344.080543.5236675.3125339.9123339.2120538.3210466.9