Year	Number of Firms
1992-01-01	53
1997-01-01	94
2002-01-01	93
2003-01-01	91
2004-01-01	101
2005-01-01	98
2006-01-01	104
2007-01-01	108
2008-01-01	120
2009-01-01	120
2010-01-01	131
2011-01-01	144
2012-01-01	143
2013-01-01	152
2014-01-01	144
2015-01-01	147
2016-01-01	147