1 The percentage of...increases sharply between...and ..., going up from...to ...
2 There is a gradual increase in the number of....over the period of one month.
3 The number/percentage shows an upward/downward trend from...to...
4 A sharp increase can be found in the number/percentage. from...to...
5 The year of 2000 witnesses a steady fall in the amount of...
6 There was a slight decline in the percentage of sth. throughout the period.
7 There was a sudden jump in the number of sth. over the period from...to...
8 There was a marked decrease in the profit of sth. in around 2003.
