condition mean min max 0 h after light 15.55045 12.8157 18.2852 4 h after light 3.2738300000000002 1.18711 5.36055 8 h after light 3.4968200000000005 2.76725 4.22639 4 h after dark 8.02401 7.2755 8.77252 8 h after dark 6.5247399999999995 5.39986 7.64962 12 h after dark 11.360809999999999 7.20832 15.5133