The 2011 approval rate data was recently released by CIC. For spouses, partners and children the data by Visa Office is:
All Points of Service* 83%
Africa & Middle East 79%
Abidjan/Dakar 74%
Abu Dhabi 81%
Accra - RPC 50%
Cairo 85%
Damascus - RPC 92%
Nairobi 81%
Pretoria 64%
Rabat 89%
Tel Aviv 84%
Asia & Pacific 81%
Beijing - RPC 86%
Colombo 90%
Hong Kong 69%
Islamabad 85%
Kuala Lumpur 75%
Manila 93%
New Delhi 83%
Seoul 95%
Singapore - RPC 53%
Sydney Australia 91%
Taipei 97%
Tokyo 98%
Europe 91%
Ankara 84%
Berlin 93%
Bucharest 95%
Kiev 90%
London - RPC 93%
Moscow 91%
Paris-RPC 92%
Rome 83%
Vienna - RPC 84%
Warsaw 91%
Americas 87%
Bogota 91%
Buenos Aires 88%
Buffalo - RPC 95%
Caracas 88%
Guatemala 91%
Havana 86%
Kingston, Jamaica 88%
Lima 89%
Mexico City 79%
Port-au-Prince 59%
Port of Spain 76%
Santiago 84%
Santo Domingo 82%
Sao Paulo 97%
You can find info on number of applications and other visa classes at http://www.data.gc.ca/default.asp?lang=En&n=5175A6F0-1&xsl=datacataloguerecord&metaxsl=datacataloguerecord&formid=427337D0-7C36-4FED-8428-C6A63F8C19B3
All Points of Service* 83%
Africa & Middle East 79%
Abidjan/Dakar 74%
Abu Dhabi 81%
Accra - RPC 50%
Cairo 85%
Damascus - RPC 92%
Nairobi 81%
Pretoria 64%
Rabat 89%
Tel Aviv 84%
Asia & Pacific 81%
Beijing - RPC 86%
Colombo 90%
Hong Kong 69%
Islamabad 85%
Kuala Lumpur 75%
Manila 93%
New Delhi 83%
Seoul 95%
Singapore - RPC 53%
Sydney Australia 91%
Taipei 97%
Tokyo 98%
Europe 91%
Ankara 84%
Berlin 93%
Bucharest 95%
Kiev 90%
London - RPC 93%
Moscow 91%
Paris-RPC 92%
Rome 83%
Vienna - RPC 84%
Warsaw 91%
Americas 87%
Bogota 91%
Buenos Aires 88%
Buffalo - RPC 95%
Caracas 88%
Guatemala 91%
Havana 86%
Kingston, Jamaica 88%
Lima 89%
Mexico City 79%
Port-au-Prince 59%
Port of Spain 76%
Santiago 84%
Santo Domingo 82%
Sao Paulo 97%
You can find info on number of applications and other visa classes at http://www.data.gc.ca/default.asp?lang=En&n=5175A6F0-1&xsl=datacataloguerecord&metaxsl=datacataloguerecord&formid=427337D0-7C36-4FED-8428-C6A63F8C19B3