The line graph compares the amount of time in which vehicles were produced by four car factories owned by General Motor, Ford, Toyota, and Honda in the US between 1998 and 2005.
Overall, for most of the time, Ford needed the highest amount of time to produce vehicles. By contrast, Honda spent the least amount of time on their production.
In 1998, General Motor had to spend the largest number of hours to manufacture their products, at 32 hours per vehicle. Ford needed 28 hours per vehicle while Toyota and Honda required a relatively lower number at about 22 hours to produce one vehicle. However, only 2 years later, Ford became the one that needed the biggest amount of time to produce their production.
From 1998 to 2001, Ford witnessed a dramatic increase in their time spent on manufacturing to a peak of almost 32 hours per vehicle. Contrastly, the amount of time spent by General Motors declined constantly throughout the period to only under 22 hours per vehicle. Toyota and Honda remained quite stable at between 20 to 24 hours spent on each of their production.