The provided line graph illustrates the sales at portland auto, namely, car ,trucks, and motorcycles over a span of 4 years from 2000 to 2003.
Overall, motorcycles experienced an upward trend, while the data indicate a downward trend in trucks, with motorcycles showing the most noticeable change and the figure of car and trucks showing some fluctuation over the period.
At the beginning of the period, the sales of car represented the most significant portion of this chart, at around 55 sales. After that, the figure of car decreased significantly, and increased sharply, reaching almost 50 sales by 2003. At the start of the period, the number of trucks stood at around 35 sales. Afterwards, the sales of trucks remained stable, and fluctuated, reaching around 35 sales in 2003. In the first year, the data for motorcycles contributed the lowest proportion at approximately 10 sales. Then, the sales of motorcycles increased significanly, reaching 40 sales by 2003