Year	Number of Firms
1997-01-01	21
2002-01-01	42
2003-01-01	41
2004-01-01	58
2005-01-01	67
2006-01-01	85
2007-01-01	106
2008-01-01	121
2009-01-01	135
2010-01-01	146
2011-01-01	154
2012-01-01	138
2013-01-01	174
2014-01-01	169
2015-01-01	187
2016-01-01	204