Year	Number of Firms
1992-01-01	1
1997-01-01	3
2002-01-01	4
2003-01-01	11
2004-01-01	18
2005-01-01	19
2006-01-01	14
2007-01-01	14
2008-01-01	23
2009-01-01	56
2010-01-01	36
2011-01-01	14
2012-01-01	10
2013-01-01	6
2014-01-01	18
2015-01-01	13
2016-01-01	2