Year	Number of Firms
1992-01-01	77
1997-01-01	109
2002-01-01	151
2003-01-01	149
2004-01-01	132
2005-01-01	163
2006-01-01	157
2007-01-01	157
2008-01-01	149
2009-01-01	128
2010-01-01	149
2011-01-01	178
2012-01-01	152
2013-01-01	153
2014-01-01	153
2015-01-01	157
2016-01-01	126