Year	Number of Firms
1992-01-01	90
1997-01-01	118
2002-01-01	112
2003-01-01	156
2004-01-01	172
2005-01-01	156
2006-01-01	133
2007-01-01	129
2008-01-01	157
2009-01-01	158
2010-01-01	151
2011-01-01	153
2012-01-01	150
2013-01-01	167
2014-01-01	184
2015-01-01	157
2016-01-01	158