Year	Number of Firms
1992-01-01	99
1997-01-01	138
2002-01-01	151
2003-01-01	132
2004-01-01	144
2005-01-01	149
2006-01-01	178
2007-01-01	197
2008-01-01	211
2009-01-01	208
2010-01-01	214
2011-01-01	204
2012-01-01	205
2013-01-01	195
2014-01-01	186
2015-01-01	185
2016-01-01	185