Historical series of the circulating park by age group and by sex

The data are extracted from the car tax database of the Piedmont Region, where all vehicles owned by residents in Piedmont are censused. The circulating fleet is identified as the set of vehicles owned by residents in the Piedmont Region that are not removed and valid on 31 December of each annual survey carried out. The list shows the number of cars/motor vehicles in circulation, distributed by gender and age group of their owners (natural persons only). The historical depth is 10 years (from the year indicated).本数据集提取自皮埃蒙特大区（Piedmont Region）的机动车税收数据库，该数据库对皮埃蒙特大区居民名下的全部机动车开展了全面普查。流通车辆集合被界定为：在每一次年度普查的12月31日当日仍未办理注销手续且状态有效的皮埃蒙特大区居民名下机动车。本数据集按车辆所有人（仅统计自然人）的性别与年龄组分类，展示了流通中的汽车/机动车保有量。数据集的历史覆盖年限为10年，以标注的起始年份为准。