Year	Number of Firms
1992-01-01	106
1997-01-01	171
2002-01-01	150
2003-01-01	171
2004-01-01	181
2005-01-01	214
2006-01-01	199
2007-01-01	238
2008-01-01	231
2009-01-01	225
2010-01-01	219
2011-01-01	217
2012-01-01	209
2013-01-01	230
2014-01-01	247
2015-01-01	216
2016-01-01	219