condition mean min max 4 h after light 5.1966600000000005 5.09463 5.32294 8 h after light 5.189356666666666 5.14884 5.24621 12 h after light 5.069356666666667 4.90107 5.3038099999999995 4 h after dark 5.132246666666667 4.98325 5.30035 8 h after dark 4.9182 4.70895 5.20602 12 h after dark 5.19989 4.94698 5.4856