Year	Number of Firms
1992-01-01	17
1997-01-01	17
2002-01-01	19
2003-01-01	23
2004-01-01	18
2005-01-01	19
2006-01-01	31
2007-01-01	33
2008-01-01	28
2009-01-01	36
2010-01-01	35
2011-01-01	40
2012-01-01	45
2013-01-01	38
2014-01-01	40
2015-01-01	42
2016-01-01	48