Year	Number of Firms
1992-01-01	31
1997-01-01	60
2002-01-01	94
2003-01-01	94
2004-01-01	103
2005-01-01	133
2006-01-01	170
2007-01-01	175
2008-01-01	189
2009-01-01	202
2010-01-01	221
2011-01-01	214
2012-01-01	263
2013-01-01	247
2014-01-01	250
2015-01-01	211
2016-01-01	219