Year	Number of Firms
1992-01-01	58
1997-01-01	155
2002-01-01	151
2003-01-01	159
2004-01-01	177
2005-01-01	194
2006-01-01	216
2007-01-01	280
2008-01-01	299
2009-01-01	210
2010-01-01	255
2011-01-01	263
2012-01-01	320
2013-01-01	317
2014-01-01	292
2015-01-01	253
2016-01-01	215