Level	Annual CO2 Per Person (lbs.)
10	below 1,000
9	1,000 to 5,000
8	5,000 to 10,000
7	10,000 to 15,000
6	15,000 to 20,000
5	20,000 to 25,000
4	25,000 to 30,000
3	30,000 to 35,000
2	35,000 to 40,000
1	above 40,000