Year	Number of Firms
1992-01-01	1
1997-01-01	7
2002-01-01	24
2003-01-01	31
2004-01-01	66
2005-01-01	41
2006-01-01	33
2007-01-01	31
2008-01-01	38
2009-01-01	30
2010-01-01	18
2011-01-01	20
2012-01-01	15
2013-01-01	30
2014-01-01	24
2015-01-01	26
2016-01-01	18