condition mean min max 4 h after light 8.063186666666667 7.9264 8.22883 8 h after light 7.21165 7.066960000000001 7.360639999999999 12 h after light 7.6162833333333335 7.562819999999999 7.7053 4 h after dark 7.2604500000000005 7.151110000000001 7.40223 8 h after dark 7.993880000000001 7.700710000000001 8.238430000000001 12 h after dark 8.57177 8.52157 8.59924