condition mean min max 4 h after light 14.445143999999999 14.157928 14.73236 8 h after light 12.7828895 11.407851 14.157928 12 h after light 12.430035499999999 10.702143 14.157928 4 h after dark 14.656146 14.157928 15.154364 8 h after dark 15.431204000000001 13.663205 17.199203 12 h after dark 15.649484 15.649484 15.649484