Year	Number of Firms
1992-01-01	2
1997-01-01	6
2002-01-01	16
2003-01-01	15
2004-01-01	17
2005-01-01	20
2006-01-01	15
2007-01-01	17
2008-01-01	18
2009-01-01	25
2010-01-01	38
2011-01-01	30
2012-01-01	24
2013-01-01	22
2014-01-01	27
2015-01-01	19
2016-01-01	25