Year	Number of Firms
1992-01-01	6
1997-01-01	15
2002-01-01	7
2003-01-01	9
2004-01-01	16
2005-01-01	17
2006-01-01	14
2007-01-01	18
2008-01-01	16
2009-01-01	25
2010-01-01	40
2011-01-01	36
2012-01-01	24
2013-01-01	25
2014-01-01	16
2015-01-01	28
2016-01-01	29