condition mean min max 0 h after light 7.86232 7.76202 7.96262 2 h after light 8.552425 7.85115 9.2537 4 h after light 8.96604 8.3786 9.55348 8 h after light 11.51555 10.9081 12.123 12 h after light 12.75695 12.0235 13.4904 2 h after dark 12.8311 11.9595 13.7027 4 h after dark 12.956949999999999 10.4452 15.4687 8 h after dark 8.713104999999999 7.69125 9.73496 12 h after dark 9.023399999999999 8.33616 9.71064