1. Since 1950, sales have grown steadily, quadrupling in total to over 200 million bottles.

2. By quadrupling the number of visitors, our foreign exchange would be enhanced by nearly ￡000 million.

3. This will require in the short to medium term, a quadrupling of our power generation capacity.

4. Insurance companies suddenly raised liability premiums by leaps and bounds, commonly doubling, quadrupling, even increasing them by tenfold!

5. So the data that I have suggests that if you double export volume, it will lead to a quadrupling of new HIV infections.