condition mean min max 4 h after light 5.14419 5.03991 5.2745 8 h after light 5.11363 4.89893 5.22714 12 h after light 5.2878099999999995 5.11375 5.58547 4 h after dark 5.142496666666667 4.961930000000001 5.35381 8 h after dark 5.26518 5.05976 5.56764 12 h after dark 5.193033333333333 5.07998 5.2973