condition mean min max 0 h after light 19.6241 19.2901 19.9581 4 h after light 24.44045 22.1369 26.744 8 h after light 16.9416 14.4857 19.3975 4 h after dark 12.2941 11.2844 13.3038 8 h after dark 21.111600000000003 20.9709 21.2523 12 h after dark 19.62195 19.3695 19.8744