Year	Number of Firms
1992-01-01	17
1997-01-01	21
2002-01-01	29
2003-01-01	32
2004-01-01	29
2005-01-01	32
2006-01-01	40
2007-01-01	43
2008-01-01	50
2009-01-01	40
2010-01-01	45
2011-01-01	44
2012-01-01	51
2013-01-01	53
2014-01-01	55
2015-01-01	49
2016-01-01	43