Year	Number of Firms
1992-01-01	31
1997-01-01	108
2002-01-01	99
2003-01-01	116
2004-01-01	137
2005-01-01	136
2006-01-01	132
2007-01-01	148
2008-01-01	171
2009-01-01	200
2010-01-01	221
2011-01-01	201
2012-01-01	215
2013-01-01	226
2014-01-01	201
2015-01-01	199
2016-01-01	175