Year	Number of Firms
1992-01-01	26
1997-01-01	28
2002-01-01	26
2003-01-01	23
2004-01-01	25
2005-01-01	23
2006-01-01	25
2007-01-01	33
2008-01-01	30
2009-01-01	27
2010-01-01	34
2011-01-01	48
2012-01-01	50
2013-01-01	48
2014-01-01	51
2015-01-01	48
2016-01-01	49