Year	Number of Firms
1997-01-01	18
2002-01-01	36
2003-01-01	37
2004-01-01	34
2005-01-01	48
2006-01-01	51
2007-01-01	67
2008-01-01	84
2009-01-01	74
2010-01-01	86
2011-01-01	117
2012-01-01	161
2013-01-01	145
2014-01-01	156
2015-01-01	125
2016-01-01	75