condition mean min max 4 h after light 2855.2 2855.2 2855.2 8 h after light 3269.6 2803.2 3736.0 12 h after light 3950.2 3384.6 4515.8 4 h after dark 3539.0 3013.9 4064.1 8 h after dark 2962.6 2440.7 3484.5 12 h after dark 2341.95 2258.8 2425.1