Statistic is kind of estimation of the reality. Since booszom list is created to help us estimate how much longer we have to wait of course the received date of NOA1 is correct. This what Ive read on USCIS page in the Adjudicator's Field Manual
10. 11. Order of Processing
a) Routine and Expedited Cases . Generally, applications and petitions should be processed in the order in which they are received. Exceptions can, and should, be made for a number of different reasons, and sometimes those reasons may appear to conflict with one another. Reasons for prioritizing certain applications and petitions over others may relate to:
A statutory requirement, such as the requirement that joint petitions for removal of conditions under the marriage fraud amendments be interviewed within 90 days of filing and adjudicated within 90 days of being interviewed ( section 216 of the Act), or that L-1 petitions be adjudicated within 30 days of filing (section 214(a)(2)© of the Act);
USCIS -wide policy pertaining to the type of application or petition being filed, such as The USCIS Director's fiscal year priority that backlogs in a given type of application or petition be reduced to a specified level;
Current events in the homeland of the applicant or beneficiary, such as a natural disaster or civil war;
Imminent events which may effect the eligibility of the applicant or petitioner, such as the termination of a program whose duration is limited by statute or the "ageing out" of a dependent,
A need to coordinate actions with other branches of DHS, or with other agencies in order to meet common goals
To correct an injustice which may have occurred, or to prevent one which may be about to occur.
http://www.uscis.gov/propub/ProPubVAP.jsp?...8ce159d286150e2K1, K3 certainly are not subject of USCIS Director's fiscal year priority.
In Poland is voting campaign going on. Can I classified this as a natural disaster .