Year	Number of Firms
1992-01-01	13
1997-01-01	36
2002-01-01	40
2003-01-01	34
2004-01-01	51
2005-01-01	50
2006-01-01	41
2007-01-01	55
2008-01-01	61
2009-01-01	59
2010-01-01	54
2011-01-01	72
2012-01-01	58
2013-01-01	74
2014-01-01	76
2015-01-01	71
2016-01-01	77