Year	Number of Firms
1992-01-01	194
1997-01-01	240
2002-01-01	236
2003-01-01	269
2004-01-01	271
2005-01-01	243
2006-01-01	228
2007-01-01	266
2008-01-01	298
2009-01-01	267
2010-01-01	307
2011-01-01	321
2012-01-01	325
2013-01-01	315
2014-01-01	305
2015-01-01	305
2016-01-01	300