Year	Number of Firms
1992-01-01	72
1997-01-01	149
2002-01-01	153
2003-01-01	145
2004-01-01	165
2005-01-01	164
2006-01-01	167
2007-01-01	186
2008-01-01	211
2009-01-01	196
2010-01-01	206
2011-01-01	227
2012-01-01	232
2013-01-01	241
2014-01-01	243
2015-01-01	239
2016-01-01	246