Year	Number of Firms
1997-01-01	15
2002-01-01	11
2003-01-01	18
2004-01-01	22
2005-01-01	23
2006-01-01	25
2007-01-01	31
2008-01-01	43
2009-01-01	33
2010-01-01	28
2011-01-01	33
2012-01-01	24
2013-01-01	27
2014-01-01	38
2015-01-01	46
2016-01-01	37