Let me pull an Eóghan Scherzy, since this is my first post here.
1989 - hm when it won AOTY, I think. The only album of hers that I have listened to in full.
Beyonce - about 2-3 months ago.
Britney Jean - never.
MDNA - this summer.
Unapologetic - a month ago.
Artpop - November 2013.
Prism - beginning of 2014, I think. I still listen to Walking on Air.
1989 - whatever month it came out in; not a pleasant listen and would definitely not relisten to or recommend to anyone but my worst enemy
Beyonce - about a month ago
Britney Jean - see 1989
MDNA - like two years ago
Unapologetic - see britney jean
Artpop - like 9 months ago
Prism - a month ago--not really intentionally though
1989 - In full like this summer
Beyonce - Never
Britney Jean - The day it was available for streaming on iTunes before it was released
MDNA - Never
Unapologetic - The day it came out, I still listen to some songs though
Artpop - June, this year
Prism - Like Christmas 2013