Year	Number of Firms
1992-01-01	25
1997-01-01	32
2002-01-01	19
2003-01-01	29
2004-01-01	24
2005-01-01	22
2006-01-01	24
2007-01-01	27
2008-01-01	37
2009-01-01	24
2010-01-01	26
2011-01-01	25
2012-01-01	22
2013-01-01	23
2014-01-01	35
2015-01-01	28
2016-01-01	27