condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.37649 0.278187 0.556491 6 h after dark 0.15660633333333332 0.0 0.469819 9 h after dark 0.102089 0.0 0.306267 12 h after dark 0.0804871 0.0 0.141775