In the 1670's prices climbed to one and one-half pence, but a tremendous crop in 1680 glutted the market again. The crop was said to have been so large that it would have supplied the demand for the next two years, even if none were produced in 1681. The General Assembly once again came to the aid of the planter by rating tobacco in payment of debts at one and one-fifth pence in 1682, and two pence in payment of quit-rents in 1683. Once again Virginia renewed attempts to bring about a cessation of production, but the English government refused to permit such action claiming that it would stimulate foreign production and thereby reduce the revenue to the Crown. In April, 1682 the General Assembly convened but was prorogued by Lieutenant Governor Sir Henry Chicheley a week later, when it was apparent that the members were determined to discuss nothing but the cessation of tobacco. A week later a series of plant cuttings broke out in Gloucester County followed by others in New Kent and Middlesex counties. Approximately 10,000 hogsheads of tobacco were destroyed before these riots were put down by the militia. Probably as a result of this destructive act, prices rose to two and a half pence in 1685, but a bumper crop of over 18,000,000 pounds in 1688, the largest ever produced to that date, caused prices to drop to one penny per pound in 1690. Throughout most of the seventeenth century the tobacco planters were plagued with the problem of overproduction and low prices. To add to their woes the entire eighteenth century was one of periodic wars either in Europe or in America, or both. King William's War ended in 1697 and the following year tobacco prices soared to twenty shillings per hundred pounds and prices remained good for the next few years. The outbreak of Queen Anne's War and another 18,000,000 pound crop ushered in another depression. Several thousand hogsheads of tobacco shipped on consignment in 1704 brought no return at all, and the next year many of the planters sold their tobacco for one-fourth of a penny per pound. Instead of attempting to limit production in an effort to relieve the market conditions, these low prices caused the planters to increase production as they attempted to meet their obligations. In 1709 tobacco production reached an all-time high of 29,000,000 pounds.