The bar chart compares the number of prisoners in five countries—Great Britain, Australia, New Zealand, the United States, and Canada—over a 50-year period from 1930 to 1980.
Overall, the United States had the highest number of prisoners throughout this period, while Great Britain consistently had the lowest. The data shows significant fluctuations in the prison populations across all five countries, with notable increases and decreases at various points in time.
As can be seen from the graph, the United States had the highest number of prisoners in four out of the six years shown on the chart, and in 1980 the figure for this country peaked at nearly 140,000 prisoners. Canada had the highest figures for imprisonment in 1930 and 1950, with about 120,000 prisoners in both years. The figures for New Zealand and Australia fluctuated between 40,000 and 100,000 prisoners, although New Zealand’s prison population tended to be the higher of the two.