[newnewpdro]

You're assuming a random distribution of skimmers at pumps across the nation.

Such criminal activity tends to occur in concentrated pockets.

Gas stations around Joshua Tree, CA had been rumored to be skimming people's cards, and some now carry large official stickers warning users of their cards likely getting frozen for 72 hours should they be used at the pump, confirming the rumors.

I imagine the active number is probably more in the thousands nationally. There are a lot of lower income, high-crime areas where pumps are neglected. The Venn diagram of gas stations lacking squeegees and those compromised I suspect has a lot of overlap.