Complex sentence: The total number of breweries rose from 42 in 1978 to over 2,100 in 2013, reaching or exceeding the number of breweries estimated to exist during the colonial period, and virtually all of this growth is attributable to small breweries.
Split into simpler sentences: The total number of breweries rose from 42 in 1978 to over 2,100 in 2013, reaching or exceeding the number of breweries estimated to exist during the colonial period. Virtually all of this growth is attributable to small breweries.