Values represent unadjusted means using survey weighted linear regression models.
* Denotes significant linear trends in the contribution of a given
store-type to purchases (% volume). For all years, comparisons were made
between stores, using grocery-chains as the referent group. All comparisons
between stores were significantly different at a p<0.001 to account for
multiple comparisons and sample size. Data comes from the 2000–2012
Nielsen Homescan panel of household packaged food purchases. All values are
weighted to be nationally representative. Percentages labeled within the graph
represent estimates in 2000, 2006, and 2012. Number of household-year level
observations: n=652,023. University of North Carolina
calculation based in part on data reported by Nielsen through its Homescan
Services for all food categories, including beverages and alcohol
for the 2000–2012 periods, for the
U.S. market. Copyright © 2014, The Nielsen
Company.