Year	Number of Firms
1992-01-01	70
1997-01-01	116
2002-01-01	154
2003-01-01	156
2004-01-01	178
2005-01-01	186
2006-01-01	205
2007-01-01	243
2008-01-01	307
2009-01-01	265
2010-01-01	284
2011-01-01	307
2012-01-01	317
2013-01-01	345
2014-01-01	313
2015-01-01	321
2016-01-01	327