The graph delineates the trend of changes in the percentage of families with cars in a specific European nation in three decades, from 1971 to 2001. An overview of the trend suggests that from 1971 untill 2001, families gradually gravitated to owning cars, with a steady reduction in the percentages of households without cars and fluctuating increases in the ownership of one or more cars for these families.
The year in which the percentage of households without cars peaked is 1971, where a staggering amount of roughly 47.5% of households lacked any cars. On the other hand, the highest recorded rate of the percentage increase in households with one car was from 1981 to 1991, where percentages substantially rose from a meagre 30%, which was a recorded all-time low to a stunning 47.5%. The highest percentages recorded in the data for households with more than 1 car were in the years 1981 and 2001, where an estimated 27.5% was recorded for both these years respectively.
With the decline in the number of households with no cars, fluctuations were noted among households with cars over the years. The percentage of households with one car dropped from 1971 before steadily growing to the recorded maximum in 1991, followed by a minor 5% decrease in 2001. Besides that, hosueholds with 2 or more cars display a small standard deviation from their average values, with small fluctuations where marginal growths were detected from 1971 to 1981 and 1991 to 2001 respectively, and a small decrease in percentage from 1981 to 1991.