15.000 electric cards sold in the U.S. in March, out of 1.6 million is an interesting number, closing in to 1%
My country (Uruguay) is at about 0.5% electric cars.
China is the world leader by quantity, about 2.1% of new cars are electric.
By percentage, Norway has an astonishing 40% of new car sales being electric, due to heavy tax incentives, it'll be interesting to see what happens there.