condition mean min max 4 h after light 11489.608865 11231.99472 11747.22301 8 h after light 10682.108825 10080.88729 11283.33036 12 h after light 11294.734925 11167.52408 11421.94577 4 h after dark 12487.89428 12408.17942 12567.60914 8 h after dark 10686.7334845 9690.081069 11683.3859 12 h after dark 10772.33717 10772.33717 10772.33717