condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.1289165 0.12358 0.134253 4 h after dark 0.014632233333333333 0.0 0.0438967 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0