Year	Number of Firms
1992-01-01	5
1997-01-01	15
2002-01-01	53
2003-01-01	64
2004-01-01	70
2005-01-01	64
2006-01-01	86
2007-01-01	190
2008-01-01	162
2009-01-01	153
2010-01-01	180
2011-01-01	173
2012-01-01	166
2013-01-01	171
2014-01-01	159
2015-01-01	74
2016-01-01	60