Year	Number of Firms
1992-01-01	13
1997-01-01	23
2002-01-01	28
2003-01-01	23
2004-01-01	30
2005-01-01	28
2006-01-01	26
2007-01-01	40
2008-01-01	40
2009-01-01	32
2010-01-01	24
2011-01-01	28
2012-01-01	31
2013-01-01	25
2014-01-01	28
2015-01-01	36
2016-01-01	37