Year	Number of Firms
1997-01-01	48
2002-01-01	77
2003-01-01	85
2004-01-01	75
2005-01-01	89
2006-01-01	91
2007-01-01	113
2008-01-01	129
2009-01-01	126
2010-01-01	127
2011-01-01	144
2012-01-01	126
2013-01-01	150
2014-01-01	162
2015-01-01	135
2016-01-01	156