condition mean min max 4 h after light 16.36477 14.648279999999998 18.07602 8 h after light 8.145941 4.458775 12.023589999999999 12 h after light 11.716528333333335 9.736766000000001 15.62071 16 h after light 25.909853333333334 22.88877 27.43641 4 h after dark 28.92864666666667 24.57686 31.820590000000003 8 h after dark 17.912200000000002 15.63156 22.21132