We had a lucky day today, earlier this week we had a couple of unlucky days as well. It all balances out. You can't use a single day or even a single week as a basis for expectations of how the future will pan out, you need to look at a much larger sample size. Compare all of today on all of the large pools for example, then average the data from all of those pools for a month. Our good luck benefited us today, but it's just a small ripple in the ocean when you start looking at the big picture