If you look at mine again, it's 68 GB per day. (Officially 2,000 GB per month, so the daily cap is marginally lower in July than June.)
That's not a typo. I had 33,670 page views yesterday. A typical blog post might have anywhere from 15-30 images, say 60 KB each, so about 1-2 MB, not counting headers, thumbnails and other design elements. The main page has 3 posts. I got lucky yesterday that I noticed the traffic early and did a "welcome" post with no images, which pushed a regular post off the front page. If I hadn't done that, I probably would have exceeded my cap and been off the air by early afternoon.