Year	Number of Firms
1992-01-01	1
1997-01-01	81
2002-01-01	160
2003-01-01	184
2004-01-01	193
2005-01-01	220
2006-01-01	218
2007-01-01	270
2008-01-01	352
2009-01-01	378
2010-01-01	422
2011-01-01	412
2012-01-01	393
2013-01-01	444
2014-01-01	506
2015-01-01	570
2016-01-01	572