The time spent by UK residents on three types of telephone calls Could you please help me review my essay? Thank you very much! :) Figure 1 shows the time spent by UK residents on three types of telephone calls between 1995 and 2002 ( /from 1995 to 2002). The minutes spent on local-fixed line calls remained the highest throughout the period, rising from 72 billion to its peak -90 billion- in 1999 ( /to hit 90 billion in 1999), then falling back to the 1995 figure. In contrast, (the minutes of) the other two types continued growing during ( /in) the whole period, but with different speeds; (the minute of) the national and international-fixed line calls, the more steady one, increased from 28 billion to 61 billion, while (the minutes of) the mobile calls went up dramatically from 2 billion to 46 billion. The great growth of telephone calls may result from rapid developments of economy and ( /as well as) communication technology. The former made people in greater need of phone calls; the latter improved ( /guaranteed easier) access to calls. Meanwhile, due to increasingly convenient and diversified functions of mobiles, the status of local-fixed line was threatened, leading to its downward trend and a narrowing gap between the three categories in the last half of the period.