Year	Number of Firms
1992-01-01	195
1997-01-01	221
2002-01-01	228
2003-01-01	238
2004-01-01	258
2005-01-01	254
2006-01-01	260
2007-01-01	275
2008-01-01	301
2009-01-01	256
2010-01-01	234
2011-01-01	196
2012-01-01	168
2013-01-01	173
2014-01-01	169
2015-01-01	155
2016-01-01	168