I made the comment in my Half Time Report that I think I've managed to stick to "posts no shorter than normal and no longer".
Alas the data don't match that.
Here's a graph of average post length (just len(page.content.split())) by month:
Clearly the posts this month are longer on average. And because I'm writing more of them, the last point of this next graph is no surprise.
This is a graph with post lengths totalled for each month:
And obviously this month has a fair bit to go. What's more interesting though is my first year of blogging saw growth in total words posted per month grow to a peak around 7500 in December 2004 and then a clear trend down to the trough in August 2006 when I posted just 3 short posts the whole month.
These graphs were done with IBM's Many Eyes simply because Apple Numbers fails miserably at charting anything but the smallest data sets.