Year	Number of Firms
1992-01-01	4
1997-01-01	5
2002-01-01	17
2003-01-01	29
2004-01-01	31
2005-01-01	34
2006-01-01	39
2007-01-01	40
2008-01-01	46
2009-01-01	49
2010-01-01	60
2011-01-01	60
2012-01-01	65
2013-01-01	65
2014-01-01	79
2015-01-01	76
2016-01-01	69