Year	Number of Firms
1992-01-01	83
1997-01-01	117
2002-01-01	138
2003-01-01	140
2004-01-01	150
2005-01-01	160
2006-01-01	146
2007-01-01	170
2008-01-01	181
2009-01-01	155
2010-01-01	187
2011-01-01	182
2012-01-01	176
2013-01-01	187
2014-01-01	181
2015-01-01	165
2016-01-01	168