Year	Number of Firms
1992-01-01	105
1997-01-01	126
2002-01-01	137
2003-01-01	145
2004-01-01	127
2005-01-01	156
2006-01-01	152
2007-01-01	153
2008-01-01	157
2009-01-01	152
2010-01-01	154
2011-01-01	173
2012-01-01	148
2013-01-01	147
2014-01-01	135
2015-01-01	155
2016-01-01	149