Year	Number of Firms
1992-01-01	4
1997-01-01	16
2002-01-01	18
2003-01-01	15
2004-01-01	30
2005-01-01	28
2006-01-01	43
2007-01-01	47
2008-01-01	46
2009-01-01	37
2010-01-01	41
2011-01-01	52
2012-01-01	67
2013-01-01	66
2014-01-01	55
2015-01-01	50
2016-01-01	46