Year	Number of Firms
1992-01-01	2
1997-01-01	13
2002-01-01	16
2003-01-01	19
2004-01-01	31
2005-01-01	41
2006-01-01	87
2007-01-01	122
2008-01-01	139
2009-01-01	54
2010-01-01	67
2011-01-01	79
2012-01-01	54
2013-01-01	88
2014-01-01	73
2015-01-01	59
2016-01-01	50