condition mean min max 0 h after light 2631.95 2631.04 2632.86 4 h after light 3068.155 2921.8 3214.51 8 h after light 2521.515 2479.18 2563.85 4 h after dark 2379.905 2155.76 2604.05 8 h after dark 3030.4700000000003 3002.94 3058.0 12 h after dark 2813.87 2797.27 2830.47