Year	Number of Firms
1992-01-01	2
1997-01-01	15
2002-01-01	18
2003-01-01	23
2004-01-01	29
2005-01-01	20
2006-01-01	24
2007-01-01	32
2008-01-01	46
2009-01-01	34
2010-01-01	34
2011-01-01	33
2012-01-01	42
2013-01-01	43
2014-01-01	36
2015-01-01	31
2016-01-01	43