Year	Number of Firms
1992-01-01	10
1997-01-01	16
2002-01-01	15
2003-01-01	16
2004-01-01	20
2005-01-01	21
2006-01-01	21
2007-01-01	29
2008-01-01	39
2009-01-01	34
2010-01-01	46
2011-01-01	48
2012-01-01	50
2013-01-01	53
2014-01-01	48
2015-01-01	49
2016-01-01	51