Year	Number of Firms
1992-01-01	21
1997-01-01	26
2002-01-01	16
2003-01-01	30
2004-01-01	27
2005-01-01	31
2006-01-01	28
2007-01-01	41
2008-01-01	45
2009-01-01	37
2010-01-01	49
2011-01-01	51
2012-01-01	49
2013-01-01	34
2014-01-01	35
2015-01-01	35
2016-01-01	39