Their experimentation with drugs, for example, was so widespread that as of the mid - 1990 ’ s, the illegal drug trade was worth an estimated $500 billion a year, making it, as one source says, “the single most lucrative business sector in the world. ”
એક ઉદ્ભવકર્તા કહે છે, “આ વ્યાપારમાં એટલો બધો ફાયદો છે કે જેની સરખામણી બીજા કોઈ સાથે થઈ શકે નહિ. ”