The given line graph demonstrates the amount of average time that various sorts of car production namely General Motor, Ford, Toyota, and Honda spent on manufacturing vehicles at their factories in the US from 1998 to 2005.
Overall, all categories of vehicle brands witnessed a downward trend in time-consumed car production throughout the period shown. However, General Motor ranks first with a significant amount of time needed for their product manufacture compared to the three remaining brands.
Initially, General Motor spent the highest amount of hours creating a car, with a considerable number of 32 hours per vehicle in 1998, after which a drop of 30 and was outstripped by Ford in 1999. It continued to decrease steadily over 7 years and reached 22 in the last year. Conversely, standing at the second-highest commencing point, Ford saw an ascending trend in the following year and gradually surpassed General Motor, taking the lead in time consumed per vehicle. However, from 2001, it suddenly declined and reached the same point as General Motor in 2005.
Turning to the two remaining brands, Toyota and Honda share a similar beginning point of 22 hours per car. Meanwhile the former experienced an upward trend until 2001, there is a descending in the latter’s time needed during the same period. On the other hand, after a fluctuation period, both brands had a drop to 20 in the last year.