Band 9: Write a report for a university lecturer describing the information in the graph below. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The provided line graph illustrates the incidence of X disease in Someland over a thirty-five-year period from 1960 to 1995.

Overall, the data reveals significant fluctuations in disease cases, peaking in the mid-1970s before experiencing a drastic decline by the mid-1990s.

In the initial years between 1960 and 1970, the number of reported cases of X disease remained stable at 100 cases until 1970, when it increased sharply to 200 cases. This upward trend continued, and by 1975, the incidence surged to 500 cases, remaining constant through 1980. Subsequently, there was a notable decrease to 400 cases in 1985, signaling the beginning of a decline.

From 1990 onwards, the incidence rate of X disease saw a rapid decrease, plummeting to 100 cases, and ultimately, by 1995, the cases had completely vanished, with a recorded incidence of 0. This is a stark contrast to the peak observed in the mid-1970s, highlighting a significant reduction and eventual eradication of the disease within the last decade of the specified period.