Year	Number of Firms
1992-01-01	153
1997-01-01	223
2002-01-01	233
2003-01-01	234
2004-01-01	222
2005-01-01	231
2006-01-01	245
2007-01-01	261
2008-01-01	266
2009-01-01	225
2010-01-01	262
2011-01-01	280
2012-01-01	294
2013-01-01	292
2014-01-01	277
2015-01-01	289
2016-01-01	292