condition mean min max 4 h after light 130.7165685 106.232884 155.200253 8 h after light 127.1612765 115.782804 138.539749 12 h after light 129.8434005 102.61808 157.068721 4 h after dark 156.04274800000002 130.101221 181.984275 8 h after dark 229.09632 197.201851 260.990789 12 h after dark 192.859714 192.859714 192.859714