In 1981, RPM magazine published a chart for top-performing singles in the adult contemporary category in Canada. The chart, entitled Adult Oriented for the June 6 issue and Contemporary Adult for the rest of the year, has undergone numerous name changes, becoming Adult Contemporary in 1984 to September 1988, and from May 1989 until the magazine's final publication in November 2000. The 1981 charts were issued between June 6 and July 4, and August 29 and December 26, with a seven-week hiatus; the chart had gone into hiatus between the November 29, 1980 and May 30, 1981 issues. Sixteen individual singles reached number one in the 1981 charts, which contains 30 positions and are based on record sales and adult contemporary radio playlist submissions.