Year	Number of Firms
2003-01-01	4
2004-01-01	14
2005-01-01	15
2006-01-01	20
2007-01-01	18
2008-01-01	21
2009-01-01	20
2010-01-01	22
2011-01-01	25
2012-01-01	31
2013-01-01	30
2014-01-01	31
2015-01-01	20
2016-01-01	29