Year	Number of Firms
1992-01-01	22
1997-01-01	31
2002-01-01	36
2003-01-01	27
2004-01-01	24
2005-01-01	33
2006-01-01	38
2007-01-01	53
2008-01-01	44
2009-01-01	47
2010-01-01	55
2011-01-01	58
2012-01-01	56
2013-01-01	56
2014-01-01	50
2015-01-01	54
2016-01-01	55