Table:
text: List of number-one singles of 1981 (Canada)
Chart history
Chart history
Volume_Issue Issue_Dates Weeks_on_Top Song Artist
35:5 § 29 August 1  Gemini Dream  Moody Blues
35:6 5 September 1  Sausalito Summernight  Diesel
35:7-8 12-19 September 2  Urgent  Foreigner
35:9-14 26 September - 31 October 6  Endless Love  Diana Ross and Lionel Richie
35:15 7 November 1  Every Little Thing She Does Is Magic  The Police
35:16-20 14 November - 12 December 5  The Friends of Mr. Cairo  Jon & Vangelis
35:21-24 19 December - 23 January 1982 6  Physical  Olivia Newton-John

Question: In the chart of number one singles of 1981 (Canada), what is the issue with less than 6 weeks at the top and for the song "The Friends of Mr. Cairo"?