Year	Number of Firms
1992-01-01	3
1997-01-01	7
2002-01-01	9
2003-01-01	5
2004-01-01	17
2005-01-01	15
2006-01-01	14
2007-01-01	19
2008-01-01	22
2009-01-01	36
2010-01-01	31
2011-01-01	43
2012-01-01	43
2013-01-01	42
2014-01-01	29
2015-01-01	32
2016-01-01	36