Year	Number of Firms
1992-01-01	14
1997-01-01	22
2002-01-01	17
2003-01-01	17
2004-01-01	22
2005-01-01	22
2006-01-01	22
2007-01-01	13
2008-01-01	24
2009-01-01	18
2010-01-01	21
2011-01-01	23
2012-01-01	26
2013-01-01	25
2014-01-01	23
2015-01-01	13
2016-01-01	25