Year	Number of Firms
1992-01-01	7
1997-01-01	4
2002-01-01	17
2003-01-01	22
2004-01-01	33
2005-01-01	45
2006-01-01	46
2007-01-01	39
2008-01-01	51
2009-01-01	49
2010-01-01	32
2011-01-01	31
2012-01-01	36
2013-01-01	33
2014-01-01	28
2015-01-01	25
2016-01-01	15