The proovided charts illustrates the distribution of time used for different activities in the office in the US in 1980 and 2000. Overall, while phone accounted for the highest percentage in 1980, computer has replaced the leading position in 2000.
In 1980, Phone had the largest share compared to the rest activities, standing at 30%. The secoond largest activity is paper documents at 20%, followed by meeting at 10%. The combinations of the three categoriess with the highest percentages accounted for more than half at 64% Meeting, the other resources, face-to-face communication had 19%, 15%, 14% respectively. The shallest share is shown by computer at just above zero.
In 2000, the notable change is recorded by computer at 30% ,which was the highest figure in 2000, overtaking all other categories. Followed by phone at just below 20%. The third and forth largest figure was the other activities at 15% and 14% respectively. The rest categories were ranged within 6 to 8%.