These infographics are a few years old but still very interesting. Neatorama linked to one about the number of people employed by the U.S. government (1% of the U.S. population). But I think the spread on worldwide smoking is even more interesting. One fact from that infographic:

In 2000, 964 billion cigarettes were reported as exports, worldwide. 672 billion were reported as imports. Does that mean 1/3 of the world's cigarettes from that year just disappeared? It's an interesting look at the black market of tobacco.