Original sentence: 1,231.1,271.1,490.1,734.1981 figures include plastic.29,665.3,464.3,556.42,669.55,834.98,503The Royal Ulster.Constabulary acquired plastic.Numbers of rubber and plastic bullets fired in the North of Ireland 1970-1981.Plastic bullets.Rubber bullets.Total rubber and plastic bullets.bullets fired by the RUC.bullets fired by the army.bullets in 1978, but the figures.for 1978, 1979and 1980 refer.only to the number of plastic