Year	Number of Firms
1992-01-01	16
1997-01-01	17
2002-01-01	16
2003-01-01	20
2004-01-01	19
2005-01-01	21
2006-01-01	25
2007-01-01	27
2008-01-01	35
2009-01-01	34
2010-01-01	36
2011-01-01	47
2012-01-01	43
2013-01-01	50
2014-01-01	45
2015-01-01	47
2016-01-01	50