Year	Number of Firms
1992-01-01	28
1997-01-01	46
2002-01-01	116
2003-01-01	133
2004-01-01	122
2005-01-01	109
2006-01-01	115
2007-01-01	115
2008-01-01	161
2009-01-01	132
2010-01-01	185
2011-01-01	193
2012-01-01	190
2013-01-01	182
2014-01-01	190
2015-01-01	231
2016-01-01	250