condition mean min max 4 h after light 57.787716 52.456429 63.119003 8 h after light 60.428904 60.358242 60.499566 12 h after light 59.456828 58.077211 60.836445 4 h after dark 93.454048 64.829885 122.078211 8 h after dark 145.8908215 50.890679 240.890964 12 h after dark 98.30899 98.30899 98.30899