Year	Number of Firms
1992-01-01	4
1997-01-01	7
2002-01-01	10
2003-01-01	15
2004-01-01	16
2005-01-01	19
2006-01-01	11
2007-01-01	31
2008-01-01	21
2009-01-01	18
2010-01-01	16
2011-01-01	24
2012-01-01	39
2013-01-01	33
2014-01-01	37
2015-01-01	39
2016-01-01	29