The given line graph demonstrates how much hours spend to produce of one car from different companies from 1999 to 2006.
Overall, we can see that Audi and Mercedes witnessed decrease for hourse spent on one car in the end of the period compared to in the beginning, wherea Nissan had a modest surged and Volvo remained stable throughout the period.
In 1999, the Audi made up the highest portion of hour for production, above 30, whereas this figure experienced a dramatic decline even though under the Mercedes (about 24 hours) between 1999 and 2006. After the end of the 2001, the Mercedes stated to spend the most time to produce a car the remain of the period, and it peaked at approximately 27 in 2002.
The Volvo had never seen any improvment the whole period, and it remained stable, with about 23 hours. Also, the Nissan and the Volvo spend the equal time for their cars in 2003 and in 2006, and the figure was 23 hours both of times. Apart from this, the Nissan had some fluctuations during the period. First, it achieved the decrease of spending hour between 2000 and 2003, and it made up the least hours for production out of the 4 companies. (also, in 2005), whereas in the end of the period this figure surged again nearly in the beginning of the period.
