Year	Number of Firms
1992-01-01	13
1997-01-01	16
2002-01-01	31
2003-01-01	27
2004-01-01	29
2005-01-01	21
2006-01-01	23
2007-01-01	22
2008-01-01	25
2009-01-01	15
2010-01-01	16
2011-01-01	22
2012-01-01	19
2013-01-01	17
2014-01-01	13
2015-01-01	17
2016-01-01	10