NSC NCLEX passing rate 66.28%

i was checking over the nclex pass rates for 2006-2007 for the various schools and was surprised the pass rate for NSC is 66.28% and CSN was 86.98% . why is NSC so low?? i graduated from CSN and passed RN boards first try.. i didn't see apollo's las vegas nclex rate posted .. does anyone know when their first class graduates? good luck to all students .. i love you all