Year	Number of Firms
1992-01-01	5
1997-01-01	4
2002-01-01	27
2003-01-01	17
2004-01-01	29
2005-01-01	28
2006-01-01	24
2007-01-01	30
2008-01-01	37
2009-01-01	31
2010-01-01	47
2011-01-01	48
2012-01-01	55
2013-01-01	48
2014-01-01	37
2015-01-01	36
2016-01-01	45