Year	Number of Firms
1992-01-01	17
1997-01-01	22
2002-01-01	30
2003-01-01	30
2004-01-01	36
2005-01-01	31
2006-01-01	39
2007-01-01	49
2008-01-01	35
2009-01-01	48
2010-01-01	51
2011-01-01	64
2012-01-01	64
2013-01-01	46
2014-01-01	53
2015-01-01	47
2016-01-01	59