Year	Number of Firms
1992-01-01	12
1997-01-01	20
2002-01-01	27
2003-01-01	26
2004-01-01	29
2005-01-01	33
2006-01-01	41
2007-01-01	43
2008-01-01	51
2009-01-01	51
2010-01-01	44
2011-01-01	49
2012-01-01	59
2013-01-01	48
2014-01-01	43
2015-01-01	49
2016-01-01	50