Year	Number of Firms
1992-01-01	94
1997-01-01	157
2002-01-01	137
2003-01-01	123
2004-01-01	145
2005-01-01	145
2006-01-01	172
2007-01-01	161
2008-01-01	181
2009-01-01	209
2010-01-01	204
2011-01-01	199
2012-01-01	169
2013-01-01	175
2014-01-01	177
2015-01-01	191
2016-01-01	147