Year	Number of Firms
1992-01-01	5
1997-01-01	4
2002-01-01	17
2003-01-01	13
2004-01-01	17
2005-01-01	16
2006-01-01	17
2007-01-01	21
2008-01-01	18
2009-01-01	20
2010-01-01	24
2011-01-01	26
2012-01-01	18
2013-01-01	21
2014-01-01	26
2015-01-01	23
2016-01-01	35