condition mean min max 4 h after light 4.250126666666667 4.16803 4.3102599999999995 8 h after light 4.3461 4.281569999999999 4.43518 12 h after light 4.30271 4.17945 4.46457 4 h after dark 4.337716666666666 4.2954 4.407109999999999 8 h after dark 4.312703333333333 4.26484 4.357080000000001 12 h after dark 4.323453333333333 4.23626 4.45517