Year	Number of Firms
1992-01-01	30
1997-01-01	66
2002-01-01	86
2003-01-01	87
2004-01-01	120
2005-01-01	125
2006-01-01	139
2007-01-01	166
2008-01-01	224
2009-01-01	256
2010-01-01	267
2011-01-01	275
2012-01-01	288
2013-01-01	326
2014-01-01	341
2015-01-01	353
2016-01-01	311