Year	Number of Firms
1992-01-01	9
1997-01-01	19
2002-01-01	28
2003-01-01	21
2004-01-01	23
2005-01-01	21
2006-01-01	30
2007-01-01	27
2008-01-01	37
2009-01-01	40
2010-01-01	36
2011-01-01	43
2012-01-01	34
2013-01-01	48
2014-01-01	45
2015-01-01	51
2016-01-01	42