The graph below shows changes in the share of vehicle registrations of the three most common types of commercial vehicles in the US between 1970 and 2010.

The graph below

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illustrates

illustrastes

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illustrates

the changes made over time in the share of

vehical

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vehicle

registrations

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in the US of the three most common types of

commercials vehicle

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commercial vehicles

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between 1970 and 2010 In the year 1970, The

registrations

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for taxis and buses showed an increase

whereas

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the

registrations

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of

trucks

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showed a decrease. After a decade, in the year 1980,

in contrast

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to 1970, the

numbers

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number

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of

trucks

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registered showed a sudden incline

while

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the other two types of

vehicle

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vehicles

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showed a decline. The

number

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of

trucks

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getting

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apply

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registered each year

were

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was

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constant from 1980 to 1990

while

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the other two still declined. The

number

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of

trucks

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kept on increasing till 2010 but ended at 45%

while

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the percentage of

registrations

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for

trucks

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in 1970 was 49%. From 2000-2010 the

number

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of

registrations

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for taxis showed a significant increase and ended at 35% in 2010 which is 10 percentage points more than when it started. The

number

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of

registrations

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for buses showed a constant decline till 2010 and ended at 3% which is 2 less than the percentage points it started with.

To conclude

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, the only vehicle that increased in

registrations

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over the period of 4 decades were taxis

while

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the other two decreased.