Year	Number of Firms
1992-01-01	56
1997-01-01	64
2002-01-01	115
2003-01-01	128
2004-01-01	147
2005-01-01	120
2006-01-01	127
2007-01-01	160
2008-01-01	158
2009-01-01	171
2010-01-01	198
2011-01-01	223
2012-01-01	239
2013-01-01	229
2014-01-01	215
2015-01-01	229
2016-01-01	258