Year	Number of Firms
1992-01-01	3
1997-01-01	15
2002-01-01	13
2003-01-01	12
2004-01-01	14
2005-01-01	18
2006-01-01	43
2007-01-01	51
2008-01-01	71
2009-01-01	60
2010-01-01	44
2011-01-01	52
2012-01-01	59
2013-01-01	56
2014-01-01	66
2015-01-01	64
2016-01-01	71