Some discussion over on T19 has led me to point ou...

Some discussion over on T19 has led me to point out in that in the second chart you can see the "Sunday effect" (that's is, the effect of Christmas Eve falling on a Sunday) pretty well in this chart. Christmas fell on a Monday in 1995, 2000, and 2006; it's not clear why the peak is in 2005 rather than 2006, but in any case the little bump in ASA shows up quite plainly.