condition mean min max 0 h after light 16.58755 15.207 17.9681 4 h after light 15.8047 12.3106 19.2988 8 h after light 34.009100000000004 33.4842 34.534 4 h after dark 39.64105 30.6987 48.5834 8 h after dark 26.902949999999997 24.3067 29.4992 12 h after dark 18.236 14.0767 22.3953