By 1930, because enforcement diminished the supply, this had increased to $35 per year (there was no inflation in this period), resulting in an illegal alcohol beverage industry that made an average of $3 billion per year in illegal untaxed income.
This had increased to $35 per year (there was no inflation in this period). This was by 1930. This was resulting in an illegal alcohol beverage industry. This was by 1930. This illegal alcohol beverage industry made an average of $3 billion per year in illegal untaxed income. Enforcement diminished the supply.