Year	Number of Firms
1992-01-01	10
1997-01-01	22
2002-01-01	22
2003-01-01	22
2004-01-01	29
2005-01-01	27
2006-01-01	39
2007-01-01	49
2008-01-01	47
2009-01-01	53
2010-01-01	60
2011-01-01	60
2012-01-01	44
2013-01-01	36
2014-01-01	51
2015-01-01	61
2016-01-01	63