Year	Number of Firms
1992-01-01	6
1997-01-01	90
2002-01-01	132
2003-01-01	127
2004-01-01	171
2005-01-01	186
2006-01-01	190
2007-01-01	212
2008-01-01	259
2009-01-01	212
2010-01-01	223
2011-01-01	243
2012-01-01	275
2013-01-01	277
2014-01-01	273
2015-01-01	258
2016-01-01	267