condition mean min max 4 h after light 6.367045 5.36334 7.37075 8 h after light 5.051135 3.73238 6.36989 12 h after light 7.843960000000001 6.44958 9.23834 4 h after dark 21.9667 11.2094 32.724 8 h after dark 8.582265 7.45405 9.71048 12 h after dark 10.725069999999999 8.38684 13.0633