condition mean min max 0 h after light 40.728049999999996 39.9313 41.5248 4 h after light 10.384530000000002 9.22976 11.5393 8 h after light 6.50479 5.11253 7.89705 4 h after dark 12.54075 12.2584 12.8231 8 h after dark 18.98265 18.8143 19.151 12 h after dark 31.3349 23.0659 39.6039