Any person, association, firm or corporation which violates any provision
of this chapter or assists in the violation of any provision of this
chapter shall be guilty of a violation of this chapter only and shall
be punishable as follows:
By a fine of not more than $5,000 or by imprisonment for a period
not to exceed 15 days, or both, for conviction of a second offense,
provided the first and second offenses were committed within a period
of five years of each other.
By a fine of not more than $10,000 or by imprisonment for a period
not to exceed 15 days, or both, for conviction of the third or subsequent
offense or a series of offenses, all of which were committed within
a period of five years.