The given line graph illustrates the shifts in car ownership in Great Britain over the period of 3 decades from 1961 to 2001.
Overall, the percentage of car-owning households had an upward trend, while that of no-car households had a decline and became the lowest figure despite being the highest at the starting point.
In 1961, the percentage of owners having no car was by far the highest at nearly 70%. The figure of no-car households then significantly declined throughout and ended the period at just under 30% in 2001 , making it one of the lowest .
Meanwhile, the figure of one-car households initially stood at 35%, only half of that of no-car ones and ranking at the second highest. The proportion of owners with one car then continuously increased to a peak of 50% in 1981 and surpassed that of no-car households. However, the second half of the period witnessed a gradual decline and ended at about 45% but still remained the highest.
While Greate Brtain had no household with 2 or more cars at the beginning, the percentage of that then had a continuous escalation and achieved parity with the proportion of no-car households, at nearly 30%.