Overall, the proportion of owning 3 cars and 2 cars increased significantly, while the proportion of no car decreased abruptly. In contrast, 1 car ownership had the highest proportion among the four categories, although it fluctuated before returning to its initial level.
In 1975, the proportion of owning 3 cars was at 3%, while the figure for 2 cars ownership was at 7%. In addition, one car and no car ownership recorded at 45% and 43%, respectively. By 1985, 3 cars ownership increased slightly, reaching 5%, and 2 cars ownership also rose drastically to 14%. No car and 1 car ownerships demonstrated a dramatic decrease to 25% and around 37%, in turn.
For the rest of the period, all categories proceeded with their respective trends. The proportion of owning three cars kept increasing and reached 9%, but it was the lowest percentage among the four categories. Two cars ownership rose to 18%, and no car ownership fell to 21%, which represented a decrease of about half compared to its initial period. One car ownership increased tremendously and returned to its initial level of 45%, and remained the largest proportion throughout the period.