condition mean min max 4 h after light 1039.081735 994.074236 1084.089234 8 h after light 2306.471342 2209.451248 2403.491436 12 h after light 1220.5073849999999 1203.202805 1237.811965 4 h after dark 1371.7320570000002 1183.30898 1560.155134 8 h after dark 738.5404865 544.21664 932.864333 12 h after dark 964.167872 964.167872 964.167872