Year	Number of Firms
1992-01-01	20
1997-01-01	47
2002-01-01	62
2003-01-01	59
2004-01-01	76
2005-01-01	75
2006-01-01	82
2007-01-01	81
2008-01-01	105
2009-01-01	108
2010-01-01	137
2011-01-01	145
2012-01-01	155
2013-01-01	160
2014-01-01	177
2015-01-01	172
2016-01-01	176