Complex sentence: In 2004, Trussell only ran two food banks, but by 2007--2008, there were 22 food banks in the Trussell Trust Foodbank Network and by early 2011, The Trussell Trust supported 100.
Split into simpler sentences: In 2004, Trussell only ran two food banks. In 2007--2008, there were 22 food banks in the Trussell Trust Foodbank Network; by early 2011, The Trussell Trust supported 100.