The provided bar chart depicts the proportion of families possessing cars in an European nation during a period of 30 years.
Overall, it is readily apparent that there was a decrease in the percentage of all households throughout the time surveyed except for those having no cars. Additionally, households without cars had highest figures from 1971 to 1981, which was then replaced by families having a car during the latter years, while the inverse was true with the statistics for households having two cars during the period shown.
Starting at 50% in 1971, the percentage of households with no cars decreased to 41% in 1981, after which it experienced a fall to 30% in 1991, before ending the period at roughly 31% in 2001.
35% of the households in that European country owned a car in 1971, with a subsequent drop to 33%, followed by a rise to 50% in 1991, and a final downward trend to 42% in 2001. Meanwhile, the statistics for families using two cars witnessed opposite changes, starting at 18% in 1971 and ending at 31% in 2001.