condition mean min max 0 h after light 15.46655 15.152 15.7811 2 h after light 8.744900000000001 8.63842 8.85138 4 h after light 9.400875 9.26237 9.53938 8 h after light 10.28305 9.1598 11.4063 12 h after light 7.9386350000000006 7.29968 8.57759 2 h after dark 10.094735 9.78997 10.3995 4 h after dark 12.250350000000001 11.7215 12.7792 8 h after dark 16.5879 16.0726 17.1032 12 h after dark 15.705300000000001 14.4645 16.9461