The given line graph depicts the number of hours that four different U.S. car factories spent on manufacturing a vehicle between 1998 and 2005.
Overall, it can be seen that the General Motor and Ford companies spent more hours than the other two car manufactures on producing a car in 1998.
In 1998, the General Motor and Ford companies allocated 32 and 28 hours to produce a vehicle, whereas the other two car factories spent 22 hours on manufacturing a private car. From 1998 to 2001, the number of hours to produce a vehicle by the General Motor decreased by 27, whereas there was a gradual rise in the amount of time for manufacturing a car by Ford company (31 hours). However, the number of hours to produce a car by the other two car manufactures remained steady.
In sharp contrast, compared to the previous statistics, the amounts of time to produce a car by the General Motor, Ford, Toyota, and Honda companies went down dramatically by 22, 21, 20, and 20 hours, respectively between 2001 and 2005.