Year	Number of Firms
1997-01-01	20
2002-01-01	36
2003-01-01	47
2004-01-01	45
2005-01-01	60
2006-01-01	57
2007-01-01	62
2008-01-01	81
2009-01-01	91
2010-01-01	107
2011-01-01	104
2012-01-01	108
2013-01-01	104
2014-01-01	132
2015-01-01	118
2016-01-01	132