condition mean min max 4 h after light 10.391245000000001 9.62339 11.1591 8 h after light 10.48375 10.2332 10.7343 12 h after light 15.4049 13.9511 16.8587 4 h after dark 16.565633333333334 15.7744 17.9344 8 h after dark 18.368666666666666 17.0364 19.5639 12 h after dark 14.144933333333334 12.1362 15.4764