Taxes were up in the past 10 years for Maryland and Virginia residents, according to data from the U.S. Census Bureau, disappointing both lawmakers and anti-tax advocates. The tax burden in Virginia increased by 55 percent in that period, with a per capita amount of $1,903 in 2004. In Maryland, the tax burden increased by 46 percent, with an individual tax burden of $2,214 in 2004. The District's tax statistics are computed with cities' and local governments' financial data, which won't be available until April, the Census Bureau said.