Year	Number of Firms
1992-01-01	3
1997-01-01	13
2002-01-01	23
2003-01-01	33
2004-01-01	40
2005-01-01	37
2006-01-01	46
2007-01-01	170
2008-01-01	231
2009-01-01	104
2010-01-01	131
2011-01-01	150
2012-01-01	139
2013-01-01	135
2014-01-01	122
2015-01-01	95
2016-01-01	91