Year	Number of Firms
1992-01-01	19
1997-01-01	25
2002-01-01	43
2003-01-01	36
2004-01-01	43
2005-01-01	47
2006-01-01	33
2007-01-01	43
2008-01-01	43
2009-01-01	45
2010-01-01	45
2011-01-01	52
2012-01-01	53
2013-01-01	53
2014-01-01	55
2015-01-01	46
2016-01-01	52