Year	Number of Firms
1992-01-01	121
1997-01-01	200
2002-01-01	192
2003-01-01	234
2004-01-01	241
2005-01-01	234
2006-01-01	282
2007-01-01	332
2008-01-01	405
2009-01-01	413
2010-01-01	440
2011-01-01	481
2012-01-01	503
2013-01-01	476
2014-01-01	506
2015-01-01	508
2016-01-01	526