There were two chocolate factories that were in business before 1970. The following two decades experienced slow growth in the industry followed by an small decrease in the number of store in the late 1980's. The early 1990's were met with an explosion in the number of new retail outlets. This was mostly due to the expansion of the existing companies. Approximatly half of the retial outlets are owned by three large companies. After 1995, the growth in the number of new stores has returned to the pre-boom growth rates. The map was not able to show the transfer of ownership.