Year	Number of Firms
1992-01-01	74
1997-01-01	115
2002-01-01	166
2003-01-01	198
2004-01-01	187
2005-01-01	203
2006-01-01	264
2007-01-01	276
2008-01-01	251
2009-01-01	255
2010-01-01	262
2011-01-01	272
2012-01-01	256
2013-01-01	242
2014-01-01	214
2015-01-01	237
2016-01-01	223