Hold on, this is due to April tax returns. Let's see if this carries over to May.
Actually, it's just the opposite, generally in April the IRS refunds far more money than it brings in. I know in my area our biggest problem right now is not being able to find enough workers, and I have talked to a lot of other businessmen who are experiencing the same thing. My company has workers that we would love to terminate, but we can't because we wouldn't be able to find replacements.