I will concede this silly discussion if anyone can show me a reputable site that states a Cislunar GCR rating of less than .2 mgy/day at anytime in history. If it has ever been lower than .2 then my argument falls as false.
You've been shown from your own data that levels can fall below 0.2 mGy/day.
Further, if you look at the veracity of your own claims, Apollo 14 dose rates were 1.27 mGy/day. What does this tell you about the variation of radiation levels in cislunar space within a solar cycle?
Finally, surely you need data from solar cycle 20 and not solar cycle 24 if you want to test your 'anytime in history claim.' Your argument of extrapolation falls flat given the variations that exist in the background GCR.