Year	Number of Firms
1992-01-01	21
1997-01-01	51
2002-01-01	69
2003-01-01	74
2004-01-01	85
2005-01-01	70
2006-01-01	92
2007-01-01	96
2008-01-01	107
2009-01-01	134
2010-01-01	146
2011-01-01	152
2012-01-01	131
2013-01-01	139
2014-01-01	123
2015-01-01	134
2016-01-01	129