The metric type "1804 - Number of one person household: Aged 66 and over" value of 180 for area Hermitage, Breckland 2011 is derived by adding up values for the Output Areas that fit approximately into it.<br/><br/>Output Areas areas are determined by using the Output Areas whose centroids are located within Hermitage. Output Area areas have a 100.0% degree of fit within the area of Hermitage.