The graph below shows the average time spent by four car manufacturers to produce vehicles at their US factories

The graph shows how long

time

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four particular manufacturers spend producing a single car in their factories located in the US.

Overall

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, compared with 1998, all factories spent less

time

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in 2005 producing

one

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vehicle. At the start of the period, General Motors (GM) used the most

time

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producing a single motor, with over 32

hours

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, at the same period, Toyota and

Honda

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needed 10

hours

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less, at about 22

hours

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for these two Japanese brands to build

one

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vehicle. With regard to Ford, it cost 28

hours

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in 1998.

Thereafter

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, Toyota and

Honda

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kept at a low

time

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-consuming rate,

while

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Honda

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reached the lowest point of 20

hours

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in 1999, which is the fastest record to produce a single auto even in 2005. In contrast, Ford spent 31

hours

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in 2001, 3

hours

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more than in 1998,

whereas

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GM kept a declining trend throughout these years.

At the end

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of the period, GM had gotten a great improvement, as it only needed 22

hours

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for

one

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car, compared with 1998, saving 10

hours

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.

Besides

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, Ford needed almost 21

hours

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, 1 hour more than Toyota and

Honda

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, which kept in a low

time

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consuming for

one

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car, both ending around 20

hours

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in 2005.