One of 1130 Shark Gray ‘15 Z06 coupesShark Gray was available for only two years ('15 & '16).
According to the National Corvette Museum, in 2016, 5044 C7s were produced in Shark Gray.
2856 Stingray Coupes
439 Stingray Convertibles
1506 Z06 Coupes
243 Z06 Convertibles
(In 2015 there were 5130 Shark Gray C7s produced).
BTW, the NCM annually publishes and sells the "Corvette Black Book" which contains statistics for each year of Corvette production.