I last applied in November 2011 and got a call in May 2012 (had to decline due to studies abroad), so 6 months for me.
This is indicative of those applying, you get a call for what was once the very best of flying jobs available but decline an interview to continue your studies. What are you studying for? This job used to be a career, if you got it why worry about completing your studies?
Not having a go at you just pointing out that a job at CX now takes a back seat to completing a degree. Well done CX management.