condition mean min max 4 h after light 12.39619 11.20995 14.259220000000001 8 h after light 8.428785333333334 5.071185 14.01159 12 h after light 13.071019999999999 10.99747 14.595379999999999 16 h after light 18.55811 17.22616 20.40539 4 h after dark 14.102240000000002 10.5416 16.58405 8 h after dark 9.696335 6.067925 11.64087