Year	Number of Firms
1992-01-01	16
1997-01-01	65
2002-01-01	62
2003-01-01	83
2004-01-01	101
2005-01-01	106
2006-01-01	112
2007-01-01	143
2008-01-01	173
2009-01-01	139
2010-01-01	131
2011-01-01	146
2012-01-01	131
2013-01-01	147
2014-01-01	168
2015-01-01	171
2016-01-01	177