Year	Number of Firms
1997-01-01	33
2002-01-01	35
2003-01-01	57
2004-01-01	52
2005-01-01	49
2006-01-01	67
2007-01-01	77
2008-01-01	92
2009-01-01	89
2010-01-01	124
2011-01-01	122
2012-01-01	121
2013-01-01	123
2014-01-01	140
2015-01-01	144
2016-01-01	149