condition mean min max 4 h after light 4.399875 4.04666 4.75309 8 h after light 4.65021 3.76986 5.53056 12 h after light 5.408745 4.96657 5.85092 4 h after dark 6.919733333333333 6.20347 7.28431 8 h after dark 6.8409233333333335 6.29539 7.85313 12 h after dark 5.173723333333333 4.42167 5.80659