Year	Number of Firms
1992-01-01	28
1997-01-01	30
2002-01-01	36
2003-01-01	48
2004-01-01	40
2005-01-01	44
2006-01-01	44
2007-01-01	45
2008-01-01	42
2009-01-01	42
2010-01-01	44
2011-01-01	48
2012-01-01	45
2013-01-01	49
2014-01-01	48
2015-01-01	39
2016-01-01	43