You really need to click on the following to see it on the xckd website. Instead of static list of things that happen, you will see each item pulsating at a speed that represents how often it occurs:

The wonder of this comes from comparing different frequencies. For example, look at “heartbeat” in the top left and then compare it along the row for items such as birth and death. I don’t know where Randall gets his statistics from but he is a bona fide geek so it is not unreasonable to assume relatively good, if eclectic sources.