condition mean min max 4 h after light 11.3246885 9.628261 13.021116 8 h after light 10.2420405 9.693607 10.790474 12 h after light 14.2955455 10.796338 17.794753 4 h after dark 9.615200999999999 9.099143 10.131259 8 h after dark 11.167319500000001 10.365999 11.96864 12 h after dark 15.996883 15.996883 15.996883