Year	Number of Firms
1992-01-01	12
1997-01-01	19
2002-01-01	19
2003-01-01	18
2004-01-01	28
2005-01-01	15
2006-01-01	23
2007-01-01	22
2008-01-01	33
2009-01-01	38
2010-01-01	37
2011-01-01	34
2012-01-01	32
2013-01-01	34
2014-01-01	38
2015-01-01	38
2016-01-01	61