Year	Number of Firms
1992-01-01	131
1997-01-01	222
2002-01-01	73
2003-01-01	111
2004-01-01	170
2005-01-01	190
2006-01-01	191
2007-01-01	238
2008-01-01	233
2009-01-01	209
2010-01-01	237
2011-01-01	243
2012-01-01	233
2013-01-01	221
2014-01-01	214
2015-01-01	207
2016-01-01	218