Year	Number of Firms
1997-01-01	5
2002-01-01	17
2003-01-01	19
2004-01-01	24
2005-01-01	28
2006-01-01	22
2007-01-01	23
2008-01-01	45
2009-01-01	40
2010-01-01	46
2011-01-01	44
2012-01-01	59
2013-01-01	48
2014-01-01	59
2015-01-01	61
2016-01-01	63