condition mean min max 4 h after light 143.372982 142.078211 144.667753 8 h after light 220.109243 214.85238 225.366106 12 h after light 305.596534 264.518643 346.674425 4 h after dark 293.062437 244.92382 341.201054 8 h after dark 200.2194905 195.437693 205.001288 12 h after dark 170.538513 170.538513 170.538513