Year	Number of Firms
1992-01-01	145
1997-01-01	201
2002-01-01	195
2003-01-01	217
2004-01-01	246
2005-01-01	251
2006-01-01	240
2007-01-01	263
2008-01-01	284
2009-01-01	271
2010-01-01	311
2011-01-01	289
2012-01-01	311
2013-01-01	322
2014-01-01	305
2015-01-01	278
2016-01-01	262