The provided line graph shows changes in the number of cars per household in Great Britain over a period of 36 years.
Overall, it is clear that the number of households with a car rose, while the number of households with two or more cars fell.
Firstly, in 1971, almost half of all British households did not have regular use of a car. Around 44% of households had one car, but only about 7% had two cars. It was uncommon for families to own three or more cars, with around 2% of households falling into this category.
In addition, the one-car household was the most common type from the late 1970s onwards, although there was little change in the figures for this category. The biggest change was seen in the proportion of households without a car, which fell steadily over the 36-year period to around 43% in 2007. In contrast, the proportion of two-car families rose steadily, reaching about 26% in 2007, and the proportion of households with more than two cars rose by around 5%.