It's a lot of people applying from the U.S i bet, those on the H1B visa and the like, and with the U.S making it harder to immigrate there permanently under the Trump administration, many of them are looking at the relative ease of applying through EE for PR in Canada and going that route.
There's also been a lot of advertising about immigration to Canada around the world, as one of the few countries that have a straightforward immigration system and process for applying for PR.
Don't take this wrong way, but i think many of you should start looking at Australia especially if you're pretty far from the cut-off score.