Year	Number of Firms
1992-01-01	17
1997-01-01	31
2002-01-01	28
2003-01-01	22
2004-01-01	30
2005-01-01	35
2006-01-01	41
2007-01-01	47
2008-01-01	45
2009-01-01	41
2010-01-01	49
2011-01-01	56
2012-01-01	57
2013-01-01	61
2014-01-01	67
2015-01-01	63
2016-01-01	65