Year	Number of Firms
1992-01-01	42
1997-01-01	71
2002-01-01	118
2003-01-01	136
2004-01-01	138
2005-01-01	160
2006-01-01	182
2007-01-01	200
2008-01-01	216
2009-01-01	203
2010-01-01	260
2011-01-01	268
2012-01-01	252
2013-01-01	255
2014-01-01	258
2015-01-01	269
2016-01-01	282