condition mean min max 0 h after light 48.69725 47.6186 49.7759 4 h after light 23.879350000000002 22.9023 24.8564 8 h after light 25.455 23.2475 27.6625 4 h after dark 42.4957 42.4471 42.5443 8 h after dark 40.8887 40.3507 41.4267 12 h after dark 41.216 38.8134 43.6186