Question 3.24: Represent the following data on a chronological bar chart.

Since we have not been asked to represent the data on any specific bar chart we will use the simplest, involving only the raw data.

Then, the only concern is the scale we should use for the vertical axis. To present a true representation, the scale should start from zero and extend to, say, 800 (Figure 3.22(a)). If we wish to emphasize a trend, which is the way the variable is rising or falling with time,we could use a very much exaggerated scale (Figure 3.22(b)). This immediately emphasizes the downward trend since 1995.

Note that this data is fictitious (made-up) and used here merely for emphasis!