Year	Number of Firms
1992-01-01	504
1997-01-01	776
2002-01-01	1222
2003-01-01	1390
2004-01-01	1712
2005-01-01	2061
2006-01-01	2213
2007-01-01	2485
2008-01-01	2593
2009-01-01	2513
2010-01-01	2726
2011-01-01	2657
2012-01-01	2600
2013-01-01	2419
2014-01-01	2427
2015-01-01	2462
2016-01-01	2470