Year	Number of Firms
1992-01-01	156
1997-01-01	162
2002-01-01	205
2003-01-01	168
2004-01-01	168
2005-01-01	141
2006-01-01	153
2007-01-01	181
2008-01-01	187
2009-01-01	183
2010-01-01	182
2011-01-01	180
2012-01-01	167
2013-01-01	179
2014-01-01	179
2015-01-01	177
2016-01-01	179