I don´t know if it has been posted before.
Interesting list which has been updated considering the Rebel Heart singles with Bitch I´m Madonna landing at # 22, Living For Love at # 35 and Ghosttown at # 43.
http://www.huffingtonpost.com/entry/definitive-ranking-of-madonna-singles_us_56f1abf4e4b02c402f659777