Year	Number of Firms
1992-01-01	13
1997-01-01	30
2002-01-01	25
2003-01-01	19
2004-01-01	22
2005-01-01	25
2006-01-01	25
2007-01-01	24
2008-01-01	34
2009-01-01	31
2010-01-01	34
2011-01-01	32
2012-01-01	31
2013-01-01	34
2014-01-01	29
2015-01-01	40
2016-01-01	33