Year	Number of Firms
1992-01-01	7
1997-01-01	13
2002-01-01	8
2003-01-01	11
2004-01-01	17
2005-01-01	28
2006-01-01	25
2007-01-01	28
2008-01-01	33
2009-01-01	23
2010-01-01	43
2011-01-01	57
2012-01-01	36
2013-01-01	35
2014-01-01	42
2015-01-01	47
2016-01-01	33