Store brand dollar sales grew 1% to a record $199 billion in all US retail channels in 2021, according to IRI data. Private brand dollar share last year was 17.7%, while unit share came in at 19.6%. Both represent increases over a three-year period. According to the Private Label Manufacturers Association, last year was a roller coaster ride for store brands. Sales were up, then down, but finished strong, with increases averaging about 5% over the last five months. The just-released “PLMA 202...