I don't know much about your particular local, but I am preparing to write the intake test for local 50 in Toronto. I spoke with someone at the union hall. I was told they called out about 200 people between December 2012 and December 2013. Your best bet is probably to just call the union and ask how many they called out in the previous period.
I'm finding that this is a really hard industry to get information about compared to some of the more traditional trades like electrician. If you wouldn't mind, I started another thread with some questions about the intake process. Would you be able to answer the ones you can?
Thanks and Good luck,
Mo
