Year	Number of Firms
1992-01-01	35
1997-01-01	40
2002-01-01	31
2003-01-01	22
2004-01-01	40
2005-01-01	39
2006-01-01	50
2007-01-01	51
2008-01-01	45
2009-01-01	44
2010-01-01	51
2011-01-01	47
2012-01-01	46
2013-01-01	58
2014-01-01	51
2015-01-01	60
2016-01-01	50