Table 1 in chapter 8 of the 2005-2006 annual report of the Office of the Commissioner of Official Languages states that, from April 1, 2005 to March 31, 2006, Air Canada was the subject of 69 admissible complaints. During that period, Air Canada served 32 million passengers. Of those 69 complaints, 21 complaints were founded, nine were unfounded and 39 are under investigation; the remaining six were withdrawn by the complainants.
That means that Air Canada received one complaint for every 463,764.11 passengers that it served. The percentage of passengers who filed a complaint against Air Canada on the language question was 0.000215625 percent.
You'll agree with me that that's a fairly small figure.