Year	Number of Firms
1992-01-01	1
1997-01-01	35
2002-01-01	205
2003-01-01	220
2004-01-01	215
2005-01-01	246
2006-01-01	280
2007-01-01	285
2008-01-01	288
2009-01-01	280
2010-01-01	293
2011-01-01	283
2012-01-01	298
2013-01-01	297
2014-01-01	344
2015-01-01	247
2016-01-01	243