Year	Number of Firms
1992-01-01	21
1997-01-01	24
2002-01-01	33
2003-01-01	35
2004-01-01	48
2005-01-01	45
2006-01-01	43
2007-01-01	48
2008-01-01	50
2009-01-01	58
2010-01-01	41
2011-01-01	52
2012-01-01	43
2013-01-01	45
2014-01-01	39
2015-01-01	36
2016-01-01	44