Year	Number of Firms
1992-01-01	23
1997-01-01	29
2002-01-01	30
2003-01-01	34
2004-01-01	36
2005-01-01	37
2006-01-01	44
2007-01-01	47
2008-01-01	57
2009-01-01	45
2010-01-01	46
2011-01-01	49
2012-01-01	49
2013-01-01	60
2014-01-01	53
2015-01-01	52
2016-01-01	49