Table:
text: List of number-one singles of 1981 (Canada)
Chart history
Chart history
Volume_Issue Issue_Dates Weeks_on_Top Song Artist
34:6-8 20 December 1980 – 31 January 1981 7  (Just Like) Starting Over  John Lennon
34:9-12 7-28 February 4  The Tide Is High  Blondie
34:13 7 March 1  The Best of Times  Styx
34:14-15 14-21 March 2  Woman  John Lennon
34:16-18 28 March - 11 April 3  Celebration  Kool & the Gang
34:19-20 18-25 April 2  9 to 5  Dolly Parton
34:21-22 2-9 May 2  Morning Train  Sheena Easton
34:23-25 16-30 May 3  Angel of the Morning  Juice Newton
34:26-35:4 6 June - 22 August 12  Stars on 45 Medley  Stars on 45

Question: What is the volume: output for the song "Stars on 45 Medley" in the 1981 number-one singles chart (Canada)?

Question: For number one singles list of 1981 (Canada), what is the cumulative number of weeks at the top for volume: issue 34:9-12?