Year	Number of Firms
1992-01-01	35
1997-01-01	45
2002-01-01	47
2003-01-01	48
2004-01-01	56
2005-01-01	69
2006-01-01	80
2007-01-01	83
2008-01-01	107
2009-01-01	121
2010-01-01	127
2011-01-01	124
2012-01-01	122
2013-01-01	138
2014-01-01	138
2015-01-01	138
2016-01-01	169