Year	Number of Firms
1992-01-01	4
1997-01-01	13
2002-01-01	20
2003-01-01	18
2004-01-01	26
2005-01-01	22
2006-01-01	25
2007-01-01	25
2008-01-01	23
2009-01-01	31
2010-01-01	34
2011-01-01	40
2012-01-01	42
2013-01-01	25
2014-01-01	35
2015-01-01	49
2016-01-01	42