ACT Results - Composite - All Students Greenfield Hi 2011-12 Compared to Prior Years |
| | Total Fall Enrollment Grade 12 | Number Tested | % Tested | Average Score - Composite |
| 2011-12 | 253 | 185 | 73.1% | 20.9 |
| 2010-11 | 256 | 169 | 66.0% | 21.1 |
| 2009-10 | 246 | 161 | 65.4% | 20.9 |
| 2008-09 | 248 | 148 | 59.7% | 20.7 |
| 2007-08 | 245 | 155 | 63.3% | 21.1 |
| 2006-07 | 270 | 163 | 60.4% | 21.3 |
| 2005-06 | 273 | 152 | 55.7% | 21.5 |
| 2004-05 | 268 | 168 | 62.7% | 21.0 |
| 2003-04 | 296 | 180 | 60.8% | 21.5 |
| 2002-03 | 273 | 173 | 63.4% | 21.3 |
| 2001-02 | 229 | 135 | 59.0% | 21.2 |
| 2000-01 | 286 | 152 | 53.1% | 21.7 |
| 1999-00 | 264 | 155 | 58.7% | 21.5 |
| 1998-99 | 259 | 138 | 53.3% | 22.1 |
| 1997-98 | 293 | 140 | 47.8% | 21.4 |
| 1996-97 | 249 | 132 | 53.0% | 21.6 |
| 1995-96 | 248 | 129 | 52.0% | 21.1 |