Chile – how do the 'little' guys perform?

A common complaint about the Chilean wine industry is that it is dominated by a handful of large wine companies. Indeed, the admirable new statistical compendium Global wine markets 1961–2009 (available as a free download here) shows that four bottles in every five of Chilean wine are sold by the three big companies, the Concha y Toro group, the Santa Rita group and the San Pedro group.