Year	Number of Firms
1992-01-01	6
1997-01-01	13
2002-01-01	13
2003-01-01	18
2004-01-01	13
2005-01-01	16
2006-01-01	17
2007-01-01	17
2008-01-01	27
2009-01-01	14
2010-01-01	19
2011-01-01	20
2012-01-01	27
2013-01-01	34
2014-01-01	29
2015-01-01	25
2016-01-01	22