Year	Number of Firms
1992-01-01	135
1997-01-01	148
2002-01-01	158
2003-01-01	163
2004-01-01	166
2005-01-01	141
2006-01-01	159
2007-01-01	183
2008-01-01	212
2009-01-01	188
2010-01-01	187
2011-01-01	220
2012-01-01	208
2013-01-01	211
2014-01-01	218
2015-01-01	232
2016-01-01	207