Year	Number of Firms
1992-01-01	122
1997-01-01	164
2002-01-01	184
2003-01-01	192
2004-01-01	195
2005-01-01	222
2006-01-01	232
2007-01-01	242
2008-01-01	247
2009-01-01	218
2010-01-01	216
2011-01-01	243
2012-01-01	220
2013-01-01	217
2014-01-01	216
2015-01-01	191
2016-01-01	182