condition mean min max 4 h after light 10.04088 9.46586 10.6159 8 h after light 9.83226 9.72036 9.94416 12 h after light 11.1573 10.9179 11.3967 4 h after dark 14.554300000000001 14.4434 14.6652 8 h after dark 12.817699999999999 12.341 13.2944 12 h after dark 13.373750000000001 13.2699 13.4776