Year	Number of Firms
1992-01-01	195
1997-01-01	292
2002-01-01	352
2003-01-01	362
2004-01-01	353
2005-01-01	350
2006-01-01	386
2007-01-01	386
2008-01-01	367
2009-01-01	377
2010-01-01	390
2011-01-01	405
2012-01-01	388
2013-01-01	380
2014-01-01	421
2015-01-01	412
2016-01-01	438