Year	Number of Firms
1992-01-01	144
1997-01-01	245
2002-01-01	215
2003-01-01	243
2004-01-01	284
2005-01-01	270
2006-01-01	270
2007-01-01	300
2008-01-01	306
2009-01-01	284
2010-01-01	297
2011-01-01	324
2012-01-01	362
2013-01-01	326
2014-01-01	343
2015-01-01	327
2016-01-01	320