Medical RCI should be a percentage, crime and planet compatibility should also be. Which would therefore apply to relevant numbers.
Example : population is 1 billion, base baby rate is 1:10000 / turn, medical is 50 => 50 thousand babies / turn.
It would make it much easier to understand than some abstract number which do not really seem understandable...
Basically => Awful = 0 to 50, average => 50 to 100, good => above 100, great => above 150, exceptional above 200 and capped at maybe 500 max.