Package Count Indicator

Hi everyone,

Really basic question that I can't seem to figure out - I'd love to have an indicator at the top of my subscription dashboard that just provides a count of the number of packages we've sold in a season. Ideally I'd also use this field in other widgets too, but for the life of me I can't find a way to count packages in Analytics. I don't want to use Order ID because most of our subscribers buy packages in pairs, and counting ticket amount doesn't work because our packages vary in size. Please help!