condition mean min max 4 h after light 0.164518 0.0 0.329036 8 h after light 0.089259 0.0 0.178518 12 h after light 0.081396 0.0 0.162792 4 h after dark 0.0 0.0 0.0 8 h after dark 0.14198100000000002 0.141353 0.142609 12 h after dark 0.070199 0.0 0.140398