Year	Number of Firms
1992-01-01	135
1997-01-01	159
2002-01-01	146
2003-01-01	150
2004-01-01	165
2005-01-01	144
2006-01-01	155
2007-01-01	157
2008-01-01	176
2009-01-01	173
2010-01-01	183
2011-01-01	175
2012-01-01	180
2013-01-01	176
2014-01-01	162
2015-01-01	171
2016-01-01	155