Year	Number of Firms
1992-01-01	183
1997-01-01	214
2002-01-01	197
2003-01-01	185
2004-01-01	204
2005-01-01	181
2006-01-01	182
2007-01-01	191
2008-01-01	211
2009-01-01	201
2010-01-01	195
2011-01-01	209
2012-01-01	195
2013-01-01	197
2014-01-01	181
2015-01-01	183
2016-01-01	177