Gfk MRI conducts national consumer surveys gathering data on buying and media consumption habits. Their data can be used to do competitive analyses of brands, pinpoint the demographic and media habits by product use or lifestyle behaviors, or identify the media consumption patterns of demographic groups.
Gfk has made a print tutorial. Note that the target defaults can be reset by any authorized user. Use the gear icon to check currently selected targets. Including all is recommended.MRI University Internet Reporter
Each year column shows the projected population for that target in the Spring survey.