Year	Number of Firms
1992-01-01	2158
1997-01-01	3866
2002-01-01	3304
2003-01-01	3225
2004-01-01	2940
2005-01-01	2876
2006-01-01	3197
2007-01-01	3564
2008-01-01	3678
2009-01-01	3386
2010-01-01	3609
2011-01-01	3737
2012-01-01	3717
2013-01-01	3641
2014-01-01	3577
2015-01-01	3454
2016-01-01	3486