Year	Number of Firms
1992-01-01	3
1997-01-01	10
2002-01-01	16
2003-01-01	16
2004-01-01	21
2005-01-01	18
2006-01-01	24
2007-01-01	22
2008-01-01	22
2009-01-01	26
2010-01-01	21
2011-01-01	23
2012-01-01	25
2013-01-01	25
2014-01-01	26
2015-01-01	40
2016-01-01	40