Year	Number of Firms
1992-01-01	191
1997-01-01	272
2002-01-01	237
2003-01-01	182
2004-01-01	235
2005-01-01	250
2006-01-01	249
2007-01-01	235
2008-01-01	265
2009-01-01	244
2010-01-01	204
2011-01-01	214
2012-01-01	236
2013-01-01	177
2014-01-01	166
2015-01-01	129
2016-01-01	94