List of phrases to describe charts:

The line graph (clearly) shows ...
The pie chart is about ...
The bar chart deals with ...
The slices of the pie chart compare the ...
The chart is divided into ... parts.
It highlights ...
... has the largest (number of) ...
... has the second largest (number of) ...
... is as big as ...
... is twice as big as ...
... is bigger than ...
more than ... per cent ...
only one third ...
less than half ...
The number ... increases/goes up/grows by ...
The number ... decreases/goes down/sinks by ...
The number ... does not change/remains stable
I was really surprised/shocked by the ...
So we can say ...
This graph shows ... the results of our products ... over 10 years.
The diagram outlines ... rates of economic growth ... between 1990 and 1996.
This table lists ... the top ten agencies ... in the industrial world.
This pie chart represents the company's turnover ...for this year in our sector.
This line chart depicts ... the changes in sales ...over the past year.
This chart breaks down (ventile) ... the sales of each salesman ... during the past ten weeks.
E.g.:
 The investment level rose suddenly.
 The sales of our products fell slightly in the final quarter.
 The Research and Development budget has stabilized over the past few years.
 At the end of the first year, sales stood at 50 per cent of the present level.
 The price reached a peak before falling a little and then maintaining the same level.
 There has been a steady increase in costs over several years.
 The sudden collapse in share prices has surprised everyone.
 The value of the shares has shown a steady decline.