As for unpaid work, the general social survey is still a very reliable source with chronological data that will allow us to keep up with the subject. As for all the other subjects that will now come from the national household survey, which we use a different methodology for because it is now voluntary, we still don't know what the repercussions will be on the quality. We already know from a few surveys we have done that some sub-populations are likely to have fewer respondents.
On November 16th, 2010. See this statement in context.