From the graph, we can see that the number of car accidents in Walton city fluctuated during the year of 1990. ⑵The first two months of 1990 showed an increasing trend. ⑶The rate rose to 32 in March but fell to 26 in June. ⑷From June on, the rate was rising again and reached the peak point 39 in August. ⑸After August the rate began to decline remarkably, and eventually dropped to the lowest point 16 at the end of the year. ⑹Therefore, it’s obvious that car accident in Walton city declined in 1990