condition mean min max 3 h after light 66.9619 56.0424 77.2044 6 h after light 60.81203333333333 47.8143 72.7007 9 h after light 48.21373333333333 47.5527 49.0554 12 h after light 44.2725 38.0797 53.6559 3 h after dark 41.3978 35.2981 49.3827 6 h after dark 39.89013333333333 37.3005 44.0427 9 h after dark 41.8594 31.4022 56.9186 12 h after dark 52.4403 43.4538 61.4268