The given bar chart illustrates the proportion of families who did not have any car and who had one car or more in a European nation over three decades, starting from 1971.
It is evident from the graph that the percentage of households with no car witnessed a downward trend throughout the survey, while the figures for families with 1 and more than 2 cars fluctuated.
At the start of the period, the proportion of families owning no car was the highest, with nearly 50% of the households. Ten years later, in 1981, this figure witnessed a small reduction by around 10%, and constantly dropped to roughly 30% by the end of the period.
On the other hand, the percentage for families owning 1 car started at 35%, compared to 25% of the proportion of more than 2 cars households in 1971. A decade later, both figures for households with 1 and more than 2 cars experienced a 10% growth to 40% and 35%, respectively, before falling slightly in 1991. By the end of the survey, 1 car owned families achieved its peak at more than a half of the households, while the category of families having more than two cars followed the same trend with a proportion of nearly 40%.