condition mean min max 2 h after light 6.917008333333333 5.20763 9.02316 6 h after light 5.168363333333334 3.82001 6.49151 10 h after light 3.8053 1.8941 4.88228 14 h after light 2.820005 2.05424 4.10305 18 h after light 3.488881666666667 2.28991 4.70976 2 h after dark 2.05262 1.18436 4.13285