The two pie charts below give information about the proportion of time wasted in various actions in the office of US between 1980 and 2000 years.
Overall, computer activity sharply increased while other activities stayed the same. Additionally, phone, paper document, and meeting activities went down while face-to-face communication stayed flat, neither growing nor declining. Moreover, It was added to email activities in 2000.
In 1980, the largest proportion of activity was phone about 30 percent, paper document was 20 percent. Additionally, the figures for face-to-face communication, meetings, and other activities were almost the same at 14, 19, and 15 percent, respectively. However, the smallest proportion of activity was computer, about 2 percent.
In 2000, the proportion of computer activity went up steadily by 27 percent. Moreover, the figure for face-to-face communication and other activities remained the same, about 14, 15 percent, respectively, like in 1980. Moreover, the activity of email was added in 2000, about 8 percent. However, the actions of the phone, paper document, and meeting decreased.