Year	Number of Firms
1992-01-01	63
1997-01-01	135
2002-01-01	121
2003-01-01	119
2004-01-01	120
2005-01-01	150
2006-01-01	146
2007-01-01	154
2008-01-01	215
2009-01-01	200
2010-01-01	224
2011-01-01	187
2012-01-01	186
2013-01-01	188
2014-01-01	176
2015-01-01	193
2016-01-01	170