condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.05793126666666667 0.0 0.113753 9 h after light 0.0 0.0 0.0 12 h after light 0.021673300000000003 0.0 0.0650199 3 h after dark 0.0175229 0.0 0.0525687 6 h after dark 0.0183159 0.0 0.0549477 9 h after dark 0.018542966666666667 0.0 0.0556289 12 h after dark 0.0 0.0 0.0