Year	Number of Firms
1992-01-01	82
1997-01-01	116
2002-01-01	119
2003-01-01	126
2004-01-01	102
2005-01-01	95
2006-01-01	88
2007-01-01	119
2008-01-01	211
2009-01-01	209
2010-01-01	236
2011-01-01	146