condition mean min max 4 h after light 10.0690645 9.051909 11.08622 8 h after light 9.562642499999999 9.358389 9.766896 12 h after light 9.997782999999998 9.52034 10.475226 4 h after dark 10.399391999999999 10.078804 10.71998 8 h after dark 9.627186 9.263056 9.991316 12 h after dark 9.538025 9.538025 9.538025