Year	Number of Firms
1992-01-01	152
1997-01-01	172
2002-01-01	181
2003-01-01	196
2004-01-01	236
2005-01-01	219
2006-01-01	204
2007-01-01	217
2008-01-01	264
2009-01-01	229
2010-01-01	225
2011-01-01	201
2012-01-01	155
2013-01-01	168
2014-01-01	159
2015-01-01	141
2016-01-01	140