Year	Number of Firms
1992-01-01	28
1997-01-01	38
2002-01-01	42
2003-01-01	51
2004-01-01	54
2005-01-01	53
2006-01-01	66
2007-01-01	64
2008-01-01	66
2009-01-01	66
2010-01-01	51
2011-01-01	61
2012-01-01	68
2013-01-01	71
2014-01-01	73
2015-01-01	73
2016-01-01	59