condition mean min max 0 h after light 0.6967905 0.626497 0.767084 4 h after light 0.838511 0.754956 0.922066 8 h after light 1.0823999999999998 1.06289 1.10191 4 h after dark 1.028335 0.6153 1.44137 8 h after dark 1.0329905 0.959811 1.10617 12 h after dark 0.8613949999999999 0.68003 1.04276