line grapgh, bar/pie chart, table ⇒ past tense

diagram ⇒ present simple

from 1980 to 2000

= between 1980 and 2000

= during the period 1980 and 2000

= during the GIVEN time period

= over this period

= over these two decades

At the beginning of the period

At the end of

接下來10 年： 10years later, in the next 10 years, following 10 years

1. The sales of computers increased considerably between 1990 and 2000.

2. The sales of computers witnessed considerable growth between 1990 and 2000.

3. There was a considerable rise between 1990 and 2000 in the sales of computers.

4. N. + of