IMPOSSIBLE TRIVIA: We Used 4 Million Back in 2000, But 11 Million in 2012! What?

Attention foodies!!  This week on Lite Rock Impossible Trivia I am giving you tickets to the A.C. Food & Wine Festival‘s Grand Market event on Friday, July 27th at Caesars.  Described as a gourmet village of more than 100 stations…showcasing demonstrations by culinary personalities as well as a selection of fine wines, foods, ales, spirits and professional tools of the trade, Grand Market is one of the biggest events of the Food & Wine Festival weekend.

This morning’s question: 4 million of these were in use in America in the year 2000,but today we're using 11 million of them.  What is it?

No correct answer this morning !  Try your best guess Thursday @ 7:20a.m. on the Lite Rock Morning Show