First I would like to clarify that "French" means "test in French" or "French test". So when it says "French" it is referring to the success rate for anglophones who take the test in French. The figures you are quoting represent the pass rates for the Public Service Commission of Canada with the old test, the test for 2006-2007, and with the new test that was implemented on October 1.
The tests in French administered to anglophones do indeed show a very low pass rate at level C, 33%. However, that figure is based on only 279 cases, while the test is administered nearly 30,000 times a year. We are currently doing a study to determine whether those results can be attributed to the characteristics of this particular group or there are other factors to be taken into account.