the bar chart shows the percentage of households with cars in a European country between 1971 and 2001

The supplied diagram illustrates the differences in the proportion of households owning cars in one European nation over the 30-year period.

Overall, it is clear that a downward trend was seen in people's having no cars, while the percentage of families with cars increased gradually.

As regards the percentage of houses possessing without cars, it comprised about under half in 1971 and then went down slightly to just over 40%, before falling substantially to approximately 30% in 2001.

In contrast, the figures for households with one or more cars grew remarkably to 45% and 21% from 1971 to 1991,respectively, after which the former dropped marginally to more than two-fifths in 2001. Then, the latter rose minimally to less than a third.