Year	Number of Firms
1992-01-01	109
1997-01-01	128
2002-01-01	128
2003-01-01	137
2004-01-01	152
2005-01-01	157
2006-01-01	166
2007-01-01	185
2008-01-01	190
2009-01-01	165
2010-01-01	150
2011-01-01	166
2012-01-01	150
2013-01-01	153
2014-01-01	160
2015-01-01	148
2016-01-01	157