Gasoline Burden, by Income Level
Year	<$10,000	$10,000 - $29,999	$30,000 - $49,999	>$50,000
1997	8.6%	4.4%	3.2%	2.0%
1998	8.2%	4.0%	2.9%	1.8%
1999	8.4%	4.1%	3.0%	1.7%
2000	10.4%	5.0%	3.6%	2.1%
2001	10.5%	4.6%	3.4%	2.0%
2002	9.7%	4.4%	3.3%	1.9%