Mid-year best selling albums and singles in US were already posted, but a combined list wasn't.
So according to Nielsen Soundscan Mid-Year Music Report, PRISM so far is the most successful female album of 2014 and 2nd overall, based on albums sales and singles sales(TEA)
2014 YTD TOP TEN SELLING ALBUMS W/TEA
(INCLUDES ALL ALBUMS & TRACK EQUIVALENT ALBUMS)
Rank - Sales - TITLE - Artist
01 - 3,379,000 - FROZEN - Soundtrack
02 - 1,073,000 - PRISM - Katy Perry
03 - 1,059,000 - G I R L - Pharrell Williams
04 - 1,036,000 - PURE HEROINE - Lorde
05 - 1,018,000 - BEYONCÉ - Beyoncé
06 - 755,000 - THE OUTSIDERS - Eric Church
07 - 746,000 - CRASH MY PARTY - Luke Bryan
08 - 727,000 - NIGHT VISIONS - Imagine Dragons
09 - 719,000 - THE MARSHALL MATHERS LP 2 - Eminem
10 - 712,000 - HERE'S TO THE GOOD TIMES - Florida Georgia Line
Nielsen Soundscan Mid-Year Music Report