Circulating park by age group and province

Circulating park for age band and province. The data are extracted from the database of the car tax of the Piedmont Region, where all vehicles owned by the residents of Piedmont are recorded. In order to determine the debtor and the amount, the following are processed: the owners’ personal data and ownership changes, the technical data of the vehicles and the payments made. The circulating park is identified as the set of vehicles owned by residents of the Piedmont Region that are not removed.面向年龄段与省份的在用机动车保有量（circulating park）数据集。本数据集的数据提取自皮埃蒙特大区（Piedmont Region）的机动车税数据库，该数据库收录了所有皮埃蒙特大区居民名下的车辆信息。为确定纳税义务人与应缴税额，需对以下信息进行处理：车主个人信息、车辆权属变更记录、车辆技术参数以及已缴纳的税款数据。本数据集所定义的在用机动车保有量，指皮埃蒙特大区居民名下未办理注销登记的机动车集合。