6 Points for maintaining 2 weeks at the number 1 spot
5 Points for a new entry in the chart, straight in at number 1
4 Points for a chart number 1 position
3 Points for a top 10 chart new entry
1 point for a new entry in the top 40
1 Point for a position moved up in the charts (cancelled out itf moved to number 1)
1 Point for maintaining a position in the charts (cancelled out if number 1)
-2 Points for moving out of the top 10
-3 Points for moving out of the charts completely

(When an artists stays at number one, the score goes up every week by 1 point, eg. 7 points for 3 weeks at number 1, 8 points for 4 weeks at number 1 etc)