Year	Number of Firms
1992-01-01	4
1997-01-01	7
2002-01-01	9
2003-01-01	9
2004-01-01	10
2005-01-01	20
2006-01-01	18
2007-01-01	18
2008-01-01	24
2009-01-01	28
2010-01-01	25
2011-01-01	20
2012-01-01	17
2013-01-01	23
2014-01-01	31
2015-01-01	26
2016-01-01	34