Grammar Structure
A) Increase / decrease
1.                                        There was a + adjective + increase in + noun.
There was a substantial increase in the number of visitors.
2.                                        There was a + adjective + decrease in + noun.
There was a dramatic decrease in unemployment.
3.                                        The figure for X increased from A to B.
The figure for car ownership increased from 40% to 65%.
4.                                        The figure for X decreased from A to B.
The figure for train users decreased from 50% to 30%.
5.                                        X rose from A to B.
The percentage rose from 20% to 45%.