Представление числовой информации и графиков

to increase
to rise
an increase
a rise
To show a small change – slight, slightly
To show a regular movement –
gradual, gradually
steady, steadily

To show considerable, striking or unexpected change -
sharp, sharply
dramatic, dramatically
sudden, suddenly

to decrease
to drop
to fall
decrease
drop
fall

There was a steady decrease between 2000 and 2004 when figures were about/reached…

Prices rose steadily from February to October, before falling sharply in November
Inflation rose gradually in March, before beginning its slight decrease to today's figure of 10.1 %

To fluctuate from May to December
To reach a peak (of 2.000)
To stand at
To remain stable
1998 saw a dramatic drop in production, followed by a sudden recovery in 1999