condition mean min max 4 h after light 16.4338935 14.736471 18.131316 8 h after light 13.408479499999999 11.832049 14.98491 12 h after light 12.972384 12.064417 13.880351 4 h after dark 12.6685575 12.319414 13.017701 8 h after dark 12.708298500000001 11.650346 13.766251 12 h after dark 17.57909 17.57909 17.57909