Year	Number of Firms
1992-01-01	28
1997-01-01	46
2002-01-01	94
2003-01-01	159
2004-01-01	160
2005-01-01	158
2006-01-01	205
2007-01-01	205
2008-01-01	217
2009-01-01	208
2010-01-01	206
2011-01-01	229
2012-01-01	247
2013-01-01	237
2014-01-01	224
2015-01-01	227
2016-01-01	215