Year	Number of Firms
1992-01-01	47
1997-01-01	56
2002-01-01	62
2003-01-01	75
2004-01-01	81
2005-01-01	78
2006-01-01	85
2007-01-01	110
2008-01-01	127
2009-01-01	144
2010-01-01	165
2011-01-01	171
2012-01-01	170
2013-01-01	173
2014-01-01	168
2015-01-01	180
2016-01-01	178