    Sentence 1: This © overall increase is -  mirrored. “by: growth in ‘the average  number of ‘new SKUs introduced per  ‘year. by. apparel “business. units, which  increased, from, 2.68. in 1988’ to 3.688  “in 19D : 7    Sentence 2 There ‘were a lot of new  “SKUs ‘introduced » be sper for retail  stores =    