A uniform statistical definition between the Nordic countries was agreed upon in 1960,[1] which defines an urban area as a continuous built-up area whose population is at least 200 inhabitants and where the maximum distance between residences is 200 metres; discounting roads, parking spaces, parks, sports grounds and cemeteries – without regard to the ward, municipal or county boundaries.[1][2] Despite the uniform definition, the various statistical bureaus have different approaches in conducting these measurements, resulting in slight variation between the countries.[lower-alpha 1]