Year	Number of Firms
1992-01-01	142
1997-01-01	152
2002-01-01	160
2003-01-01	188
2004-01-01	216
2005-01-01	215
2006-01-01	225
2007-01-01	252
2008-01-01	250
2009-01-01	198
2010-01-01	183
2011-01-01	188
2012-01-01	178
2013-01-01	196
2014-01-01	193
2015-01-01	179
2016-01-01	171