Historical series of vehicles circulating Euro 4.5,6 for emission range (gr. CO2/Km)

All vehicles owned by residents of the Piedmont Region are recorded in the car tax database. The circulating park is identified as the set of vehicles owned by residents of the Piedmont Region that are not removed and valid as of 31 December of each annual survey carried out. The list shows the number of vehicles of categories Euro 4-5 and 6, distributed by province of residence of the respective owners and emission class grams of CO2 per Km travelled (source: MCTC). The historical depth is 5 years (starting from the indicated year) and specifically the expected emission classes are: up to 20 gr..O2/Km, between 21 and 70 gr. CO2/Km, between 71 and 160 gr. CO2/Km, between 161 and 175 gr. CO2/Km, between 176 and 200 gr. CO2/Km, between 201 and 250 gr. CO2/Km, over 250 gr. CO2/Km.