condition mean min max 4 h after light 653.5987165 513.217356 793.980077 8 h after light 423.0674315 191.052111 655.082752 12 h after light 153.84239150000002 145.034498 162.650285 4 h after dark 116.8221985 37.104648 196.539749 8 h after dark 52.7362495 17.507198 87.965301 12 h after dark 686.309949 686.309949 686.309949