Year	Number of Firms
1997-01-01	24
2002-01-01	34
2003-01-01	41
2004-01-01	66
2005-01-01	64
2006-01-01	73
2007-01-01	88
2008-01-01	113
2009-01-01	117
2010-01-01	160
2011-01-01	163
2012-01-01	155
2013-01-01	154
2014-01-01	184
2015-01-01	187
2016-01-01	204