Year	Number of Firms
1992-01-01	72
1997-01-01	109
2002-01-01	89
2003-01-01	121
2004-01-01	127
2005-01-01	139
2006-01-01	151
2007-01-01	164
2008-01-01	159
2009-01-01	155
2010-01-01	170
2011-01-01	186
2012-01-01	179
2013-01-01	177
2014-01-01	159
2015-01-01	161
2016-01-01	157