A tax is imposed, whether or not a sale occurs, at the following rates on all cigarettes held in this state for sale by any person:
Class A, on cigarettes weighing not more than three pounds per thousand, seventy-six and one-half mills on each cigarette.
Class B, on cigarettes weighing more than three pounds per thousand, seventy-six and one-half mills on each cigarette.
SDCL 10-50-3