first of all i'd say that what is most relevant is that there's a true gap between the first 6 songs and the rest (13pts gap between 6th and 7th) and another smaller gap between the top 3 and the 3 other well ranked songs (9pts gap).. while the leader does have 8pts above its two runner-ups.
another striking element is that between the top 6 of round 4 and the top 6 of the previous round 5 songs remained the same (Armenia from 3rd to 6th, Spain from 2nd to 5th, Norway both times 4th, Denmark from 1st to 3rd and Finland from 6th to 1st).. Moreover, three of these five songs are nordic countries! The greatest newcomer is Slovakia jumping right ahead at 2nd, but with many high pts and many small pts it's one of the songs that divided the most and might love some points in next round. The biggest drop is Cyprus that moves from 5th to 10th, while it was above Finland the huge leader of this round before. However let's remember the finns could not vote in round 3 for their own country while theu could now.
9 voters this round, for only 7 last time, but interestingly enough not the same people voted, so this could explain some differences. Denmark and Armenia got pts from everyone last time. This time both Finland and Slovakia got pts from 8 peoples, Denmark 7. Remarkably, Denmark still gets no 12 but with three 10s and two 8s it's also the one most likely to keep points for next round. Spain also gets two 12s but also four 0s and Latvia gets three times a top 4 results but for 6 other voters it gets nil.