Year	Number of Firms
1997-01-01	10
2002-01-01	30
2003-01-01	36
2004-01-01	53
2005-01-01	153
2006-01-01	157
2007-01-01	185
2008-01-01	322
2009-01-01	249
2010-01-01	280
2011-01-01	288
2012-01-01	254
2013-01-01	242
2014-01-01	193
2015-01-01	130
2016-01-01	113