Year	Number of Firms
1992-01-01	18
1997-01-01	23
2002-01-01	33
2003-01-01	33
2004-01-01	34
2005-01-01	29
2006-01-01	37
2007-01-01	28
2008-01-01	33
2009-01-01	34
2010-01-01	35
2011-01-01	41
2012-01-01	43
2013-01-01	43
2014-01-01	53
2015-01-01	48
2016-01-01	44