condition mean min max 0 h after light 9.665845000000001 7.97579 11.3559 2 h after light 8.077825 7.34561 8.81004 4 h after light 7.230625 6.01264 8.44861 8 h after light 12.7941 11.8239 13.7643 12 h after light 20.0867 18.7343 21.4391 2 h after dark 22.19765 20.159 24.2363 4 h after dark 20.81005 19.1644 22.4557 8 h after dark 18.40515 14.9033 21.907 12 h after dark 13.0016 12.546 13.4572