Year	Number of Firms
1992-01-01	97
1997-01-01	145
2002-01-01	151
2003-01-01	150
2004-01-01	151
2005-01-01	180
2006-01-01	210
2007-01-01	236
2008-01-01	258
2009-01-01	233
2010-01-01	283
2011-01-01	326
2012-01-01	331
2013-01-01	319
2014-01-01	341
2015-01-01	330
2016-01-01	302