Year	Number of Firms
1992-01-01	12
1997-01-01	19
2002-01-01	25
2003-01-01	24
2004-01-01	20
2005-01-01	30
2006-01-01	31
2007-01-01	38
2008-01-01	31
2009-01-01	29
2010-01-01	30
2011-01-01	30
2012-01-01	28
2013-01-01	29
2014-01-01	28
2015-01-01	29
2016-01-01	21