(USA TODAY) — If you’re wondering about the bill to taxpayers for subsidies and tax breaks for all those electric cars sold last year, rest easy. Someone has totaled it up.

Taxpayers forked over a total of up to $135 million last year for 18,000 plug-in electrics and hybrids that were bought or leased by U.S. consumers, says Edmunds.com’s Inside Line. To come up with the number, the site did a little math, figuring the tax credit at a maximum of $7,500 a car, not counting any additional state tax breaks.

Eligible vehicles included the all-electric Nissan Leaf and the extended-range electric Chevrolet Volt.

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