Year	Number of Firms
1992-01-01	18
1997-01-01	17
2002-01-01	35
2003-01-01	31
2004-01-01	43
2005-01-01	38
2006-01-01	45
2007-01-01	44
2008-01-01	40
2009-01-01	42
2010-01-01	52
2011-01-01	44
2012-01-01	50
2013-01-01	59
2014-01-01	53
2015-01-01	59
2016-01-01	64