Year	Number of Firms
1992-01-01	171
1997-01-01	213
2002-01-01	226
2003-01-01	241
2004-01-01	268
2005-01-01	242
2006-01-01	276
2007-01-01	300
2008-01-01	308
2009-01-01	275
2010-01-01	232
2011-01-01	221
2012-01-01	168
2013-01-01	194
2014-01-01	172
2015-01-01	184
2016-01-01	183