Washblog

Democrats mean = 94.6, standard deviation = 8.0, minimum value =58
Republicans mean = 5.5, standard deviation = 6.2, maximum value =33

Senators

Democrats mean = 93.3, standard deviation = 10.5, minimum value =52
Republicans mean = 8.0, standard deviation = 11.5, maximum value =69

I don't think it affected the results very much to include Bernie Sanders with the Democrats in the House, but including former Republican Jeffords skewed the results for the Senate quite a bit with his rating of 69 in the conservative Democrat range.  The second highest rating for a Republican in the Senate was 35.  Note that the most conservative DINO is still about 25 points higher than the most liberal RINO.

As a check of how many legislators could be considered "moderate," I did the same calculations for all Democrats with ratings less than 85, and all Republicans with ratings more than 15.  And the differences are still pretty drastic, with very few Democrats (19 in the House, 5 in the Senate) in this category, and only 16 House and 7 Senate Republicans.  (That last number includes Jeffords as a Republican--leave him out and the mean and standard deviation change noticeably.)

House "moderates"

Democrats mean = 75.8 standard deviation = 8.8, total number =19
Republicans mean = 22.2, standard deviation = 4.6, total number =16

Senate "moderates"

Democrats mean = 71.6 standard deviation = 13.0, total number =5
Republicans mean = 34.1, standard deviation = 16.5, total number =7
Republicans mean = 28.3, standard deviation = 6.5, total number =6 (leaving Jeffords out)

So bear in mind that when occasionally some Democrats make us mad by voting with Republicans on some issues that the  majority of Democrats do not do so, and that the most conservative Democrat is more likely to be better for the interests of average citizens than the most liberal Republican by 40 or 50 points.