This calendar view maps the number of times http://o-o.preferred.nuq04s10.v17.lscache7.c.youtube.com/videoplayback?upn=OLEwiNPD_Yw&sparams=cp%2Cid%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&fexp=900081%2C907217%2C907335%2C921602%2C919306%2C922600%2C919316%2C919804%2C920704%2C924500%2C906831%2C924700%2C913542%2C919324%2C920706%2C924402%2C907344%2C912706%2C902518&ms=au&itag=37&ipbits=8&signature=A7569794F886F02398B50ABBEC09E21F6A0D783A.09873FB091095342CC4E5B46465B0156D40FAAB3&sver=3&mt=1342338675&ratebypass=yes&source=youtube&expire=1342361961&key=yt1&ip=207.241.237.185&cp=U0hTR1NRT19LS0NOM19LS1NKOndiN1Q0OVRnQWdK&id=f5b664a7bab5f5fd was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.