Year	Number of Firms
1997-01-01	13
2002-01-01	31
2003-01-01	38
2004-01-01	44
2005-01-01	48
2006-01-01	48
2007-01-01	55
2008-01-01	66
2009-01-01	61
2010-01-01	91
2011-01-01	102
2012-01-01	113
2013-01-01	114
2014-01-01	111
2015-01-01	126
2016-01-01	132