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The given line graph demonstrates the percentage changes in vehicle registrations for the three most used types of commercial automibiles in the US for the 40 decades from 1970 to 2010. Overall, it is discernible that truck represented the highest rate of registered commercial vehicles for most of the period, although there was one clear exception. Taxi registrations experienced relatively rapid fluctuations, mostly accounting for the second highest figures among the three sectors in question, followed by bus registrations. Looking at the graph more closely, one can readily see that truck was the dominant vehicle type in most of the period except for one period, when the figure dropped from approximately 49% to 30% between 1970 and 1980. However, it ascended continually to the top spot towards the end, gradually increasing to about 45% over the 30-year period. Meanwhile, the rates for Taxi registration were changed over the whole period,(문장을 끊어주세요) it experienced a rise of almost 10% in 1980, before falling considerably in the next 20 years. After this slump, the proportion for taxi soared from 25% to 35% over the last ten-year period. For bus registrations, the figure changed minimally throughout the period, but it did increase by 10% from 1970 to 1980. Subsequently, it steadily decreased to less than 4% at the end of the period. |