When 5 spots suddenly mattered and who knows how many people and pages didn't consider the - let's say - 995 songs released in 2013 vs the 1,000 released in 2015 (easy to comprehend?). Keep it up, these threads are very, very intriguing.
did you take into account compare how compatitive that year was and is not based on comparing two songs from different years based of their chart position or stan rivalry... ffs could have been the bigger hit only problem is there was 41 other songs this year that where bigger than it