For a while I was doing one a fortnight. Heck, even though I am meant to be doing one a week I am still doing about one a month. I always seem to find an excuse to get out of it.
Thats the same with ours. They might harbour all these fancy notions of getting us in more but they got rid of one of the offices and I genuinely think they can only support half the workforce in at a time maximum! Which suits me just fine!