Year	Number of Firms
1992-01-01	118
1997-01-01	158
2002-01-01	182
2003-01-01	184
2004-01-01	190
2005-01-01	186
2006-01-01	191
2007-01-01	240
2008-01-01	229
2009-01-01	246
2010-01-01	237
2011-01-01	233
2012-01-01	263
2013-01-01	261
2014-01-01	253
2015-01-01	248
2016-01-01	267