condition mean min max 4 h after light 10.4647225 8.914595 12.01485 8 h after light 9.8637045 9.564036 10.163373 12 h after light 10.092152500000001 9.458009 10.726296 4 h after dark 10.869059 10.597325 11.140793 8 h after dark 10.020098 10.020098 10.020098 12 h after dark 9.918354 9.918354 9.918354