Year	Number of Firms
1997-01-01	100
2002-01-01	143
2003-01-01	166
2004-01-01	193
2005-01-01	178
2006-01-01	189
2007-01-01	219
2008-01-01	244
2009-01-01	195
2010-01-01	225
2011-01-01	234
2012-01-01	229
2013-01-01	240
2014-01-01	246
2015-01-01	224
2016-01-01	227