Year	Number of Firms
1992-01-01	20
1997-01-01	36
2002-01-01	21
2003-01-01	25
2004-01-01	26
2005-01-01	25
2006-01-01	28
2007-01-01	33
2008-01-01	30
2009-01-01	41
2010-01-01	50
2011-01-01	40
2012-01-01	51
2013-01-01	54
2014-01-01	50
2015-01-01	52
2016-01-01	48