Year	Number of Firms
1992-01-01	133
1997-01-01	182
2002-01-01	229
2003-01-01	217
2004-01-01	204
2005-01-01	218
2006-01-01	253
2007-01-01	252
2008-01-01	340
2009-01-01	349
2010-01-01	346
2011-01-01	392
2012-01-01	388
2013-01-01	390
2014-01-01	354
2015-01-01	339
2016-01-01	299