Year	Number of Firms
1992-01-01	17
1997-01-01	34
2002-01-01	21
2003-01-01	21
2004-01-01	30
2005-01-01	29
2006-01-01	27
2007-01-01	34
2008-01-01	26
2009-01-01	33
2010-01-01	37
2011-01-01	32
2012-01-01	44
2013-01-01	48
2014-01-01	49
2015-01-01	35
2016-01-01	43