Year	Number of Firms
1992-01-01	172
1997-01-01	174
2002-01-01	217
2003-01-01	218
2004-01-01	229
2005-01-01	247
2006-01-01	246
2007-01-01	263
2008-01-01	275
2009-01-01	264
2010-01-01	274
2011-01-01	279
2012-01-01	297
2013-01-01	305
2014-01-01	268
2015-01-01	261
2016-01-01	202