The graph outlines the revenue rate from romance, comedies and action/horror for a film studio of Hollywood between 1970 and 2000.
Overall, the income rate of action/horror in 1970 was the lowest figure, which increased gradually over 30 years. In contrast, the proportion of income of romance in 1970 accounted for the highest figure, which decreased significantly over the period.
The income percentages of romantic film witnessed a considerable drop from 50% to 10% over the period, while the figures for comedies remained stable over 30 years, which was around 30%. In 1990, the figure for comedies was twice as much as romance figure, which were 30% and 15% respectively. In the year 2000, the proportion of income of comedies remained unchanged (30%) and the figure was three times as much as comedy figure (10%).
The income rate of action/horror film experienced a gradual rise from 10% to 35% between 1970 and 2000. The figure for action film doubled from 1990 to 2000, which was nearly 20% to approximately 40%. In 2000, the proportion of action film accounted for the highest figure of all three film types, which was around 40%.
