Year	Number of Firms
1992-01-01	36
1997-01-01	85
2002-01-01	88
2003-01-01	93
2004-01-01	131
2005-01-01	120
2006-01-01	115
2007-01-01	147
2008-01-01	235
2009-01-01	244
2010-01-01	328
2011-01-01	424
2012-01-01	427
2013-01-01	389
2014-01-01	370
2015-01-01	350
2016-01-01	359