condition mean min max 3 h after light 4.69102 4.45474 5.15169 6 h after light 2.02127 1.27286 2.99721 9 h after light 1.3669333333333333 1.05071 1.88395 12 h after light 4.8058525 1.6647 12.4868 3 h after dark 4.51681 3.74852 5.42956 6 h after dark 5.0252099999999995 3.9681 5.66798 9 h after dark 7.7065866666666665 6.45152 9.76609 12 h after dark 14.20475 13.2047 15.2048