The pie charts show data about what qualifications that employees in an advertising company held in 1990 and 2010.
Overall, the number of staff holding a post-graduated degree saw an upward trend. That means the figure for first-degree holders decreased after twenty years. In addition, far more staff in this company majored in Science than in Art.
In detail, the percentage of doctorate degrees in Science witnessed the biggest change, with a growth of 18% to 30% in 2010. The number of employees holding a doctoral and master degree in Art also increased but more slightly, by under 3% to 5% and 23%. The figure for holders of master degrees in Art had no change and remained at 29%.
Fewer staff held a University degree in Science in 2010 than in 1990, with figures of 20% and 11% respectively. The proportion of employees holding first degrees fell significantly from 15% to just 2%.
