Year	Number of Firms
1992-01-01	73
1997-01-01	101
2002-01-01	202
2003-01-01	190
2004-01-01	187
2005-01-01	173
2006-01-01	213
2007-01-01	216
2008-01-01	269
2009-01-01	277
2010-01-01	243
2011-01-01	235
2012-01-01	213
2013-01-01	215
2014-01-01	215
2015-01-01	201
2016-01-01	196