Year	Number of Firms
1992-01-01	4
1997-01-01	29
2002-01-01	23
2003-01-01	29
2004-01-01	32
2005-01-01	40
2006-01-01	40
2007-01-01	63
2008-01-01	77
2009-01-01	75
2010-01-01	100
2011-01-01	103
2012-01-01	106
2013-01-01	113
2014-01-01	104
2015-01-01	81
2016-01-01	82