In the five years to 1999, the annual production in Yogyakarta doubled to 28,666 tons.

The result was that "production nearly doubled every year for a decade after 1913, while the price of a Model T dropped by two-thirds."

That production could double by 2020, according to experts.

Within a year production had doubled and the brewery released its first bottle-conditioned beer.

In 2010 when the new Aitik mine expansion is completed production will double to 36 million tonnes.

Between 1822 and 1829, production more than doubled in that region i.e. from 602.000 to 1.260.000 tons.

The distillery was expanded in 1898, and production doubled.

Between 1972 and 1983 the production doubled, and since then presented a constant increment.

Past results tell us that production has doubled.

The only growth has been in truck farming as production of vegetables has doubled, largely for local market.