By Tony Owusu New Jersey’s 13 dispensaries averaged $5 million in sales a week. Cannabis is proving to be the cash crop its political advocates have hoped it would be. New Jersey became the 19th state to allow for the sale of legal recreational cannabis when 12 dispensaries opened for business across the state on April 21. Over the next four months, those 12 dispensaries have reported $24 million in sales, regulators said during a recent meeting, the New Jersey Monitor reported. The dispensaries brought in about $5 million each week, according to the Cannabis Regulatory Commission. “It’s reall…