Use Passport GMID to find consumer and demographic information data.
Passport GMID has information on countries, consumers and industries.
Information comes in different forms including statistics, reports, opinions and analysis.
Search tips for Passport GMID:
If you use the search box in the top right corner of Passport, you'll get a lot of search results that you will want to limit by industry, geography, age group, etc on the left side of your results page.
If you run into a category description that is confusing use the Help > Definitions section of the Passport site to find out how Passport is defining a particular industry or category.
For example, Passport defines consumer foodservice as "cafés/bars, full-service restaurants, fast food, 100% home delivery/takeaway, self-service cafeterias and street stalls/kiosks." The same page goes on to define these different types of foodservice providers.
The Help > FAQ section also has more information on category definitions, including an explanation of why pizza falls into different cartegories.
When you look at statistics, keep an eye out for small icons that indicate more information is availalbe elsewhere in Passport GMID.
Steve Cramer, of the University of North Carolina Greensboro, has put together an excellent guide to citing business databases in APA. You should find guidelines for citing most sources in this guide here.