6. The birth rate decreased steadily after World War 2.

The number of users rose smoothly throughout the decade.

Profits have declined slowly as competitors have taken away market share.

7. Computer use is forecast to shoot up in Africa during the coming decade.

Housing prices soar when there is a sudden increase in demand.

8. There was a slump in production between 1980 and 1985.

9. The number of Internet users should climb from 20 million in 2004 to 50 million in 2008.

10. The number of road accidents is expected to decrease from 50,000 in 2005 to 40,000 in 2007.

Unless the situation changes, there will be a decline from 20 in 2006 to 12 in 2010.

11. January will witness the launch of two new products, which should increase revenue dramatically.

12. The population will remain stable thanks to the one-child policy.

13. The percentage of young people attending university reached a peak of 47% in 2003.

14. The number of people who could not read hit its lowest point in 2003.

15. The number of Internet users is on the rise/increase at the moment.

16. Book sales are on the decline nowadays.