Year	Number of Firms
1992-01-01	61
1997-01-01	135
2002-01-01	111
2003-01-01	124
2004-01-01	132
2005-01-01	144
2006-01-01	153
2007-01-01	165
2008-01-01	168
2009-01-01	191
2010-01-01	190
2011-01-01	227
2012-01-01	234
2013-01-01	229
2014-01-01	250
2015-01-01	228
2016-01-01	232