"That very day started an unprecedented boom in our business."

Between the years of 1992 and 1998, the cigar industry experienced an unprecedented boom.

Other companies followed suit, helping fuel the unprecedented boom in stock markets here in recent years.

Kaliningrad underwent an unprecedented boom, and in 2007 a new $45m airport terminal was opened.

The fact that it could nearly go broke in the midst of an unprecedented boom says something about how the new urban West is developing.

It was amended several times and triggered an unprecedented boom in solar electricity production.

This has fueled an unprecedented boom in track construction and expansion, with much of the capital coming from equity sales.

It has been witnessing unprecedented boom in the past few years.

The reason is the unprecedented boom in the popularity of sport over the last few decades and, obviously, the rich rewards that accompany it.

Clearly the really unprecedented boom in immigration is driving a large part of the increase.