Year	Number of Firms
1992-01-01	2
1997-01-01	11
2002-01-01	11
2003-01-01	10
2004-01-01	11
2005-01-01	12
2006-01-01	12
2007-01-01	14
2008-01-01	21
2009-01-01	17
2010-01-01	26
2011-01-01	23
2012-01-01	24
2013-01-01	33
2014-01-01	28
2015-01-01	39
2016-01-01	54