Year	Number of Firms
1992-01-01	3
1997-01-01	14
2002-01-01	29
2003-01-01	23
2004-01-01	18
2005-01-01	13
2006-01-01	21
2007-01-01	18
2008-01-01	20
2009-01-01	24
2010-01-01	47
2011-01-01	33
2012-01-01	37
2013-01-01	40
2014-01-01	25
2015-01-01	35
2016-01-01	27