Year	Number of Firms
1992-01-01	139
1997-01-01	182
2002-01-01	174
2003-01-01	219
2004-01-01	257
2005-01-01	249
2006-01-01	243
2007-01-01	288
2008-01-01	304
2009-01-01	282
2010-01-01	249
2011-01-01	282
2012-01-01	286
2013-01-01	288
2014-01-01	322
2015-01-01	313
2016-01-01	275