Year	Number of Firms
1992-01-01	711
1997-01-01	1031
2002-01-01	1031
2003-01-01	1038
2004-01-01	1027
2005-01-01	1000
2006-01-01	989
2007-01-01	1049
2008-01-01	1048
2009-01-01	938
2010-01-01	1004
2011-01-01	1110
2012-01-01	1117
2013-01-01	1111
2014-01-01	1111
2015-01-01	1073
2016-01-01	1096