condition mean min max 2 h after light 10.392 10.2243 10.6728 6 h after light 11.3302 11.0188 11.6019 10 h after light 11.6004 10.89 11.9688 2 h after dark 11.8225 10.88 12.4268 6 h after dark 10.9536 10.1452 11.4948 10 h after dark 9.511276666666665 8.98749 10.2968