The chart illustrates the changes in the proportion of domestic cars among households in a European country from 1971 to 2001.
Overall, there was an upward trend in the number of households owning a car, with the exception of those without any car. By the end of the survey period, families with one car had outnumbered those without, becoming the largest segment.
In 1971, households without a car represented the highest percentage, accounting for nearly half of the families in the country. This figure gradually declined, reaching its lowest point of 30% in 1991 before remaining stable for the last decade of the study.
For the other two groups, approximately 35% of households owned one car, which was double the percentage of those with two cars in 1971. The proportion of households with one car then dropped significantly to nearly 20% in 1991, but surged to about 42% by the end of the survey. Meanwhile, the percentage of families with two cars displayed considerable fluctuations, ultimately stabilizing at approximately 30% in 2001.