condition mean min max 4 h after light 1.9538733333333334 1.44752 2.80049 8 h after light 1.4016773333333334 0.234782 2.52572 12 h after light 2.0676823333333334 0.875917 2.86559 4 h after dark 1.6923300000000001 1.47234 1.86365 8 h after dark 1.4181 1.07037 1.76066 12 h after dark 2.99873 1.07175 4.64089