Year	Number of Firms
1992-01-01	177
1997-01-01	214
2002-01-01	237
2003-01-01	239
2004-01-01	262
2005-01-01	256
2006-01-01	271
2007-01-01	281
2008-01-01	298
2009-01-01	263
2010-01-01	272
2011-01-01	295
2012-01-01	261
2013-01-01	264
2014-01-01	238
2015-01-01	250
2016-01-01	219