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| 2004 - 2008 (English (1.9 MB PDF), Spanish (335 KB PDF)) |
| 2009 - 2011 (English (189 KB PDF), Spanish (346 KB PDF)) |
| 2012 - 2015 (English (2.0 MB PDF), Spanish (2.4 MB PDF)) revised |
| 2016 - 2020 (English (2.7 MB PDF), Spanish (243 KB PDF)) |
The questionnaires are provided in pdf format. You will the free Adobe Acrobat Reader to access them. Download the latest version 
from Adobe.
