The given pie charts compare the proportions of time allocated to different activities in the office in the US in 1980 and 2000.
Overall, it is noticeable that the time spent on activities, namely computer, phone, paper document, and meeting, changed significantly, while the time that employees spend on other activities and face-to-face communication remained unchanged. Another interesting point is that email was added to the activities in 2000, which was not present twenty years before.
As regards the activities that changed the most, in 1980, the most popular activity was the phone, representing just under a third of the total. However, it declined noticeably to 17% two years later, and was replaced by the computer (30%), which was the least popular in 1980. Moreover, although the paper document accounted for one-fifth of the total, it then dropped to half of its initial value in 2000. Additionally, the meeting represented the minority (6%) in 2000.
Turning to unchanged figures, the face-to-face communication and other activities stayed the same throughout the period, accounting for 14% and 15%, respectively. Interestingly, in 1980, employees didn’t spend time on email, but twenty years later, they started to allocate 8% of their time to it.