[This message appeared in place of the blog on this date.]
The numbers don't lie. Since I switched off my blog on 6 October 2007, the usage has looked as follows (numbers are in MB):
2007-10-07 5.22
2007-10-06 265.98
2007-10-05 555.26
2007-10-04 520.27
2007-10-03 558.06
2007-10-02 632.75
So now I have to decide whether to rewrite my blog to run entirely in a database (as I have done with the rest of my site), or block all search engines to the blog site. I haven't decided yet.