Are you getting less spam lately?

I don't know about others, but I noticed a sudden drop in the number of spams I receive daily starting last week.  I used to get 600 to 1000 spams per day every day but now I am getting 150 to 250 per day.  First I thought there might be some spammers' convention going on but now I think the news of this spammer crack down might have been leaked ahead and froze at least the US spammers.  Are others seeing the similar drop in spams or did I somehow drop out of must-spam-this-guy list?