Year	Number of Firms
1992-01-01	135
1997-01-01	167
2002-01-01	142
2003-01-01	144
2004-01-01	162
2005-01-01	160
2006-01-01	162
2007-01-01	176
2008-01-01	189
2009-01-01	181
2010-01-01	178
2011-01-01	200
2012-01-01	195
2013-01-01	168
2014-01-01	183
2015-01-01	179
2016-01-01	176