Year	Number of Firms
1992-01-01	163
1997-01-01	184
2002-01-01	195
2003-01-01	204
2004-01-01	220
2005-01-01	196
2006-01-01	216
2007-01-01	264
2008-01-01	284
2009-01-01	244
2010-01-01	239
2011-01-01	270
2012-01-01	244
2013-01-01	238
2014-01-01	222
2015-01-01	229
2016-01-01	220