Year	Number of Firms
1997-01-01	14
2002-01-01	43
2003-01-01	42
2004-01-01	78
2005-01-01	94
2006-01-01	121
2007-01-01	98
2008-01-01	141
2009-01-01	97
2010-01-01	107
2011-01-01	108
2012-01-01	140
2013-01-01	163
2014-01-01	155
2015-01-01	118
2016-01-01	130
