Year	Number of Firms
1992-01-01	132
1997-01-01	170
2002-01-01	182
2003-01-01	174
2004-01-01	183
2005-01-01	159
2006-01-01	171
2007-01-01	194
2008-01-01	219
2009-01-01	198
2010-01-01	225
2011-01-01	211
2012-01-01	220
2013-01-01	222
2014-01-01	229
2015-01-01	223
2016-01-01	191