Notes:

Bolded: ACS 90% MOE crosses 0 (no data still with MOE)
Arlington County data is weighted by the number of units within the property.
- Not all properties have a units counts, which drives the number of housing units down (especially when the NA is for a multifamily)
- Number of unknown units count: 206 (2009), 233 (2010), 237 (2011), 248 (2012) and 463 (2013)
The total estimate below do not include those with an NA value (which are weighted). The % NA are based on the total estimate with NA values
Arlington County defines this category as Heating Type vs the ACS definition of Heating Fuel
- Unknown category for Arlington County are properties that could not be placed into one of the ACS bins due to lack of specificity
All prepared Arlington data are u sed n the tabulations

County

EXAMPLE

Geography:	Arlington County, Virginia
Dataset: 2013 1-year	Table B25040. HOUSE HEATING FUEL [Universe: Occupied Housing Units]
Description of Variable	ACS Benchmark			Direct Estimate from Arlington County Real Estate
Description of Variable	Estimate	90%MOE	SE	Estimate	Difference	Within 90%MOE?
Total	98,973	2,218	1,348	32,805	66,168	NO
Utility gas	46,702	2,453	1,491	769	45,933	NO
Bottled, tank, or LP gas	1,923	824	501	0	1,923	NO
Electricity	47,662	2,752	1,673	71	47,591	NO
Fuel oil, kerosene, etc.	1,634	530	322	5	1,629	NO
Coal or coke	0	198	120	0	0	YES
Wood	0	198	120	1	-1	YES
Solar energy	44	71	43	1	43	YES
Other fuel	410	267	162	5	405	NO
No fuel used	598	335	204	1	597	NO
Unknown				31,952
NA				27,318

Geography:	Arlington County, Virginia
Dataset: 2013 1-year	Table B25040. HOUSE HEATING FUEL [Universe: Occupied Housing Units]
Description of Variable	ACS Benchmark		Direct Estimate from Arlington County Real Estate
Description of Variable	Estimate	90%MOE	Estimate	Difference	Within 90%MOE?
Total	98,973	2,218	32,805	66,168	NO
Utility gas	47.19%	2.69%	2.34%	44.84%	NO
Bottled, tank, or LP gas	1.94%	0.83%	0.00%	1.94%	NO
Electricity	48.16%	2.98%	0.22%	47.94%	NO
Fuel oil, kerosene, etc.	1.65%	0.54%	0.02%	1.64%	NO
Coal or coke	0.00%	0.20%	0.00%	0.00%	YES
Wood	0.00%	0.20%	0.00%	0.00%	YES
Solar energy	0.04%	0.07%	0.00%	0.04%	YES
Other fuel	0.41%	0.27%	0.02%	0.40%	NO
No fuel used	0.60%	0.34%	0.00%	0.60%	NO
Unknown			97.40%
NA			83.27%