Year	Number of Firms
1992-01-01	42
1997-01-01	83
2002-01-01	144
2003-01-01	145
2004-01-01	138
2005-01-01	143
2006-01-01	166
2007-01-01	171
2008-01-01	154
2009-01-01	154
2010-01-01	163
2011-01-01	190
2012-01-01	179
2013-01-01	187
2014-01-01	186
2015-01-01	183
2016-01-01	180