The pie charts illustrate the percentage of time devoted to different types of activities in the office especially in the USA between 1980 and 2000.
Overall, there were noticeable variations, the highest proportion of time allocating on computer and phone. Notably, people spent less time on meetings and phone calls, whereas the figure for paper based task, becoming uncommon.
Starting with 1980, the proportion of time spent on phone calls accounted for 30%, at the dominant figure in the diagram. The percentage of time spent on paper documents recorded second accounting for 20%, which was higher than that of the figure for meetings constituting 18%, respectively. Furthermore, the proportion of time allocated on coffee breaks and filing, the former accounting for 15% and the latter 10%. The lowest figure was using computers accounting for 2%.
In 2000, there had been significant changes in the distribution of time. The proportion of time spent on computer increased dramatically accounting for 30%, which was higher than that of other categories. The figure for coffee breaks increased slightly to about 20%. However, the figure for phone declined dramatically to about 17%. The proportion of time spent in meetings and paper documents decreased slightly, with respective figures of 15% and 10%. Finally, the figure for filing disappeared significantly in 2000.