The given graph illustrates the proportion of individuals who owned a vehicle from 1971 to 2007 in Britain. It is clear that the number of car ownerships had observed a significant increase, resulting in the dramatic drop of people who previously had no vehicles during the period.
Looking at the details, in 1917, half of the British households did not have regular use of cars; these figures then experienced a remarkable fall to approximately only 25% in 2007, ending in the second lowest of the list. In contrast, the two-car ownerships which were previously ranked second lowest witnessed a considerable growth in the number of households with 27% in 2007, making it slightly higher than the total of individuals who did not own a vehicle.
Additionally, from 1971 to 2007, the population who owned one car experienced negligible fluctuations with 45% during the period, making it turned from the second-common to the highest ranked of the list. Moreover, the percentage of British households that owned more than three cars exhibited a gradual rise from 2% to nearly 8%.