Year	Number of Firms
1992-01-01	2356
1997-01-01	3916
2002-01-01	3198
2003-01-01	3120
2004-01-01	2887
2005-01-01	2947
2006-01-01	3216
2007-01-01	3650
2008-01-01	3621
2009-01-01	3325
2010-01-01	3466
2011-01-01	3667
2012-01-01	3596
2013-01-01	3505
2014-01-01	3518
2015-01-01	3428
2016-01-01	3306