condition mean min max 0 h after light 0.724438 0.435206 1.01367 4 h after light 0.803171 0.499712 1.10663 8 h after light 0.5476045 0.358169 0.73704 4 h after dark 0.4282115 0.071111 0.785312 8 h after dark 0.715504 0.575288 0.85572 12 h after dark 0.9424905 0.940002 0.944979