condition mean min max 4 h after light 59.663855 32.604134 86.723576 8 h after light 47.5061015 40.379552 54.632651 12 h after light 64.55738600000001 57.173681 71.941091 4 h after dark 44.129403999999994 37.331371 50.927437 8 h after dark 33.687985 31.340677 36.035293 12 h after dark 28.722101 28.722101 28.722101