Year	Number of Firms
1992-01-01	21
1997-01-01	18
2002-01-01	20
2003-01-01	25
2004-01-01	26
2005-01-01	25
2006-01-01	29
2007-01-01	32
2008-01-01	27
2009-01-01	21
2010-01-01	20
2011-01-01	25
2012-01-01	22
2013-01-01	21
2014-01-01	29
2015-01-01	31
2016-01-01	26