Year	Number of Firms
1992-01-01	51
1997-01-01	77
2002-01-01	106
2003-01-01	128
2004-01-01	142
2005-01-01	176
2006-01-01	188
2007-01-01	204
2008-01-01	247
2009-01-01	216
2010-01-01	231
2011-01-01	261
2012-01-01	261
2013-01-01	277
2014-01-01	289
2015-01-01	263
2016-01-01	267