Year	Number of Firms
1992-01-01	28
1997-01-01	26
2002-01-01	28
2003-01-01	24
2004-01-01	15
2005-01-01	23
2006-01-01	26
2007-01-01	30
2008-01-01	32
2009-01-01	29
2010-01-01	27
2011-01-01	43
2012-01-01	34
2013-01-01	35
2014-01-01	35
2015-01-01	27
2016-01-01	31