Year	Number of Firms
1992-01-01	87
1997-01-01	159
2002-01-01	158
2003-01-01	166
2004-01-01	186
2005-01-01	189
2006-01-01	176
2007-01-01	203
2008-01-01	231
2009-01-01	233
2010-01-01	239
2011-01-01	239
2012-01-01	253
2013-01-01	254
2014-01-01	264
2015-01-01	233
2016-01-01	229