condition mean min max 4 h after light 4217.6 4217.6 4217.6 8 h after light 4071.8999999999996 3867.6 4276.2 12 h after light 2896.35 1709.0 4083.7 4 h after dark 2658.2 1666.2 3650.2 8 h after dark 2618.95 2544.5 2693.4 12 h after dark 3168.15 2743.0 3593.3