Year	Number of Firms
1992-01-01	114
1997-01-01	171
2002-01-01	189
2003-01-01	175
2004-01-01	198
2005-01-01	216
2006-01-01	226
2007-01-01	302
2008-01-01	305
2009-01-01	332
2010-01-01	319
2011-01-01	274
2012-01-01	286
2013-01-01	254
2014-01-01	274
2015-01-01	272
2016-01-01	240