Year Number of Firms 1992-01-01 1082 1997-01-01 2228 2002-01-01 2721 2003-01-01 2838 2004-01-01 3070 2005-01-01 3131 2006-01-01 3128 2007-01-01 3217 2008-01-01 3630 2009-01-01 3626 2010-01-01 3905 2011-01-01 4091 2012-01-01 4387 2013-01-01 4495 2014-01-01 4705 2015-01-01 4802 2016-01-01 4775