condition mean min max 2 h after light 0.30814345 0.0988097 0.699058 6 h after light 0.33443466666666666 0.151966 0.565223 10 h after light 0.36977873333333333 0.0886464 0.62059 14 h after light 0.372852 0.098403 0.891718 18 h after light 0.3337425 0.0 0.82952 2 h after dark 0.10108473333333333 0.0 0.223211