Here's an alternative plot of the drivers points. The idea is to show each driver relative to the leader after each round. It is a ratio so if you are the leader and you have 60 points you will have a ratio of 60:60 ie. 1. Everybody else will have a score > 1 as they have less points.
The final thing I did was take the log of these ratios. The ratio seems to make all the leaders look very close together so taking the log shows up the differences of the leaders better at the expense of bunching up those trailing the field.
All drivers who have scored points in championship order
The gradient indicates how well each driver is keeping pace with the championship leaders. As we can see Button's and Rosberg's steep downward gradient reflects his rapid ascent in the table. Alonso and Hamilton are steadier but in opposite directions (one falling away, one homing in). Vetel is all over the place.
And for a direct comparison with WB's WDC Odds, just the selection of drivers that WB has been tracking
Interestingly it seems the WDC Points and Odds follow each other more closely than I would have thought. The Points graph is a bit more extreme (especially for Vettel) but seems to follow the same trend for all the drivers except Kubica, who looks like he is underpriced by the bookies at this stage in the season.
Thanks to WB for the data
Oh and apologies for the rubbish graphics - is there a freely available package that can do a better job than Excel? ie easily be able to set colours for each data set!