The popolarity of different professions-W1

Question

The line graph represents the proportions of British  (over 4 years old) in using radio and television in the last quarter of 1992.

                As can be seen in the graph ,  The figures for both  the TV users and  the radio listeners had a same upward trend before falling down at the end of the given period.

From the beginning of the day at 6 a.m , The percentage of tv users started at 0% with the figures for radio audiences beginning  at about 8% before they crossed each other at nearly 15% at the middle of the day .

In the following period , The data of the tv viewers increased  dramatically by almost 30%, reaching a peak at about 45% before going down quickly to approximately 2% at the end of the day . At the same time , the statistics of the radio users  fluctuated slightly  around  2% .