Year	Number of Firms
1992-01-01	2
1997-01-01	10
2002-01-01	18
2003-01-01	17
2004-01-01	13
2005-01-01	22
2006-01-01	22
2007-01-01	37
2008-01-01	32
2009-01-01	27
2010-01-01	29
2011-01-01	22
2012-01-01	32
2013-01-01	30
2014-01-01	34
2015-01-01	38
2016-01-01	32