Year	Number of Firms
1992-01-01	55
1997-01-01	106
2002-01-01	153
2003-01-01	161
2004-01-01	199
2005-01-01	211
2006-01-01	250
2007-01-01	284
2008-01-01	309
2009-01-01	271
2010-01-01	275
2011-01-01	294
2012-01-01	318
2013-01-01	303
2014-01-01	314
2015-01-01	274
2016-01-01	266