Year	Number of Firms
1992-01-01	18
1997-01-01	23
2002-01-01	21
2003-01-01	19
2004-01-01	21
2005-01-01	29
2006-01-01	31
2007-01-01	40
2008-01-01	52
2009-01-01	42
2010-01-01	46
2011-01-01	38
2012-01-01	61
2013-01-01	49
2014-01-01	55
2015-01-01	39
2016-01-01	51