Songs

Theres this song ive been listening to none stop and i was expecting it to be top 5 most listened to songs in 4 weeks and 6 months but the song isnt even showing up at all and it says i havent listened to it but in one week ive listened to it 13 times, and some songs i dont even listen to are like 11th???? Is it because its not a popular song? Stats.fm please fix this!!!!