Issued Year TTA Standard
Establish Revision
1988 0 0
1989 2 0
1990 11 0
1991 27 1
1992 34 1
1993 77 2
1994 60 0
1995 35 9
1996 80 9
1997 108 2
1998 105 14
1999 125 5
2000 528 10
2001 494 3
2002 511 152
2003 599 253
2004 354 214
2005 901 237
2006 432 250
2007 718 217
2008 915 182
2009 1121 276
2010 1478 107
2011 436 61
2012 1296 74
2013 14 5
Total 10461 2084