The given line graph shows the proportion of vehicle registrations of the truck, taxi, and bus between 1970 and 2010 in the USA.
Overall, it seems that truck accounted for the highest rate of registration, except for a certain period. Meanwhile, the registration of the bus was the lowest.
Looking at the line graph more closely, one can see that truck registration made up for nearly 50% in 1970, while the other two vehicles were under 30%. However, the percentage of truck enrollment dropped sharply to 30%. In contrast, taxi registration grew significantly and surpassed that of truck registration in 1980. From 1980, taxi and bus experienced a decrease in vehicle registration, while a growing number of trucks were registered throughout the period and finally went over 40% in 2000. It is noticeable that the registration of the bus was under 10% during most of the period, whereas that of taxi increased from 2000 and jumped to nearly 35% in 2010.
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WC: 160