Year	Number of Firms
1992-01-01	89
1997-01-01	151
2002-01-01	162
2003-01-01	153
2004-01-01	186
2005-01-01	166
2006-01-01	192
2007-01-01	222
2008-01-01	239
2009-01-01	230
2010-01-01	238
2011-01-01	244
2012-01-01	243
2013-01-01	225
2014-01-01	246
2015-01-01	219
2016-01-01	225