condition mean min max 4 h after light 3276.516001 2686.311076 3866.720926 8 h after light 1826.8463405000002 1514.061879 2139.630802 12 h after light 1195.89412 931.442907 1460.345333 4 h after dark 1361.6729075 1133.385903 1589.959912 8 h after dark 2225.6681875 1937.651772 2513.684603 12 h after dark 2690.471252 2690.471252 2690.471252