The following information is from the CRIA website, and was sent to me via Dean Scapolo. End of Year charts are courtesy of Toby Petterson.

Key to Abbreviations:
Accreditations: Platinum and Diamond awards for copies shipped to stores.
End of Year Charts: Positions in the year end lists for ABBA items.

In Canada, a Gold award is given for 50,000 copies, a Platinum award is for 100,000 copies shipped to stores, while a Diamond award is for 1,000,000 copies shipped to stores. With thanks to Michael Hartmann for a lot of these.
Abba - Gold
Greatest Hits - Platinum x 5
Arrival - Platinum x 2
Abba - The Album - Platinum x 2
Voulez-Vous - Platinum x 2
Super Trouper - Platinum x 4
Abba - The Collection - Platinum
Abba Gold - Diamond
More Abba Gold - Gold
20th Century Masters - Platinum
Mamma Mia! Soundtrack - Platinum x 2
Fernando - Gold
One Night In Bangkok - Platinum
Abba Gold (Music Video) - Platinum

At the end of each year, the top singles and albums for the year were compiled based upon sales, from the CRIA web site. Below are the year-end positions for the ABBA material that made it into the year-end charts.
1974 singles: Honey Honey was number 177 for the year.
1974 singles: Waterloo was number 67 for the year.
1975 singles: SOS was number 160 for the year.
1976 singles: Mamma Mia was number 147 for the year.
1976 singles: I Do, I Do, I Do, I Do, I Do was number 132 for the year.
1976 singles: Fernando was number 61 for the year.
1977 singles: Fernando was number 171 for the year.
1977 singles: Dancing Queen was number 5 for the year.
1978 singles: Take A Chance On Me was number 55 for the year.
1979 singles: Does Your Mother Know was number 52 for the year.
1976 albums: Greatest Hits was number 88 for the year.
1977 albums: Arrival was number 27 for the year.
1977 albums: Greatest Hits was number 13 for the year.
1978 albums: The Album was number 42 for the year.
1979 albums: Voulez-Vous was number 18 for the year.
1980 albums: Voulez-Vous was number 37 for the year.
1980 albums: Greatest Hits Vol.2 was number 26 for the year.
1981 albums: Super Trouper was number 30 for the year.
1982 albums: The Visitors was number 73 for the year.
1983 albums: Abba - The Singles was number 96 for the year.
1993 albums: Abba Gold was number 35 for the year.
2000 albums: ABBA Gold was number 48 for the year.
2001 albums: ABBA Gold was number 79 for the year.
2001 albums: 20th Century Masters was number 57 for the year.
2002 albums: Mamma Mia Soundtrack was number 147 for the year.
2002 albums: ABBA Gold was number 124 for the year.
2002 albums: 20th Century Masters was number 83 for the year.
