Year	Number of Firms
1992-01-01	8
1997-01-01	17
2002-01-01	18
2003-01-01	29
2004-01-01	41
2005-01-01	42
2006-01-01	34
2007-01-01	41
2008-01-01	47
2009-01-01	48
2010-01-01	53
2011-01-01	50
2012-01-01	67
2013-01-01	64
2014-01-01	64
2015-01-01	61
2016-01-01	55