Year	Number of Firms
1992-01-01	33
1997-01-01	39
2002-01-01	38
2003-01-01	43
2004-01-01	52
2005-01-01	46
2006-01-01	47
2007-01-01	55
2008-01-01	51
2009-01-01	52
2010-01-01	50
2011-01-01	45
2012-01-01	48
2013-01-01	49
2014-01-01	49
2015-01-01	61
2016-01-01	50