Year	Number of Firms
1997-01-01	106
2002-01-01	131
2003-01-01	154
2004-01-01	163
2005-01-01	191
2006-01-01	189
2007-01-01	242
2008-01-01	313
2009-01-01	275
2010-01-01	300
2011-01-01	301
2012-01-01	286
2013-01-01	330
2014-01-01	337
2015-01-01	341
2016-01-01	371