Year	Number of Firms
1992-01-01	49
1997-01-01	73
2002-01-01	88
2003-01-01	78
2004-01-01	107
2005-01-01	142
2006-01-01	146
2007-01-01	150
2008-01-01	147
2009-01-01	147
2010-01-01	185
2011-01-01	167
2012-01-01	170
2013-01-01	173
2014-01-01	170
2015-01-01	165
2016-01-01	160