Year	Number of Firms
1992-01-01	1
1997-01-01	15
2002-01-01	25
2003-01-01	20
2004-01-01	21
2005-01-01	23
2006-01-01	24
2007-01-01	29
2008-01-01	32
2009-01-01	32
2010-01-01	22
2011-01-01	47
2012-01-01	46
2013-01-01	48
2014-01-01	37
2015-01-01	28
2016-01-01	30