Year	Number of Firms
1992-01-01	7
1997-01-01	21
2002-01-01	24
2003-01-01	22
2004-01-01	21
2005-01-01	29
2006-01-01	26
2007-01-01	26
2008-01-01	33
2009-01-01	38
2010-01-01	40
2011-01-01	47
2012-01-01	46
2013-01-01	45
2014-01-01	48
2015-01-01	47
2016-01-01	54