Year	Number of Firms
1992-01-01	39
1997-01-01	47
2002-01-01	51
2003-01-01	76
2004-01-01	137
2005-01-01	127
2006-01-01	136
2007-01-01	197
2008-01-01	328
2009-01-01	373
2010-01-01	271
2011-01-01	199
2012-01-01	161
2013-01-01	130
2014-01-01	115
2015-01-01	108
2016-01-01	109