Reduced the amount of mutagen to be found inside labs

Since the addition of serums, the odds of finding mutagenic substances inside labs had been MULTIPLIED BY SIX , I reduced the amount of mutagens to be found, but the odds of finding mutagen in a given room are still the double than before 

Basing myself in the opinions in this thread http://smf.cataclysmdda.com/index.php?topic=5187.msg83890#new