According to news which came out yesterday, on 10 April the Canadian government agreed to fast-track the permanent residency of 7,776 skilled immigrants under express entry.If you calculate the nos of people who have received ITA till date, they total 7,776. Perhaps this is why we haven't seen a draw for a while. Further details can be found In the link below, last paragraph especially. Please share your thoughts.
http://www.cbc.ca/m/touch/canada/story/1.3070597
http://www.cbc.ca/m/touch/canada/story/1.3070597