1099 is the amount of money paid to you through out the year.
Kinda funny when you think about it. My settlements I get are the amount paid after all draws (labor, fuel, insurance, escrow fund etc.) And, my checks still ranged (bi-weekly pay) between $4,000 and $9000k. And, that includes the slow season when nothing was going on...I had a carrier which kept me very busy. If I would have stayed running for them, I would have had a 1099 of $210k last year. But, I agency hopped, and screwed around alot. My 1099 from that agent was $40k, and that was for Jan, Feb, and the first week of March.
EDIT: I'd also like to add. Which agent you work for is just as important as how hard you run as well. There are big booking agents, which will run circles around other agents. Take for instance, I made $10k paid to me after expenses in January, and in June I was working for a mega-booking agent. That month, I made $23k paid to me after expenses, and only ran 4200 miles.