21.   Instead, sales plummeted since April, forcing companies to rely on exports and retailers to offer bargains to attract customers.

22.   Industry sales plummeted during the Persian Gulf war and never fully recovered.

23.   Inevitably, sales plummeted.

24.   Many equipment companies have failed, and the survivors have seen sales plummet along with their stock prices.

25.   Nevertheless, the fan base is dwindling, and season ticket sales are plummeting.

26.   Now prices are doubling, sales are plummeting and business are laying off workers or closing down.

27.   Retail sales have plummeted.

28.   Sales have already plummeted in the wake of the tax increase.

29.   Sales have since plummeted, forcing retailers to offer bargains to attract customers.

30.   Sales of Snapple plummeted after the purchase, and Quaker ended up selling the beverage-maker.