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Conservative estimates of the population put them at more than 100,000.

It is now a $45 million a year industry, according to conservative estimates.

A conservative estimate of the population was 26 736 in 2010.

But even conservative estimates put it at 40 percent, and growing.

The most conservative estimate is for an increase of 200 million in three decades.

Even on a conservative estimate, let's say an extra 15 years of life as an average.

But even a conservative estimate would put the total amount in the high six figures.

"The key in these sales is going to be conservative estimates," he said.

If the story is true then by the most conservative estimates, the temple would be at least 4500 years old.

"By a conservative estimate, I should be able to boil away all the water in about six hours."