condition mean min max 4 h after light 9865.892223333334 8718.84 10572.19 8 h after light 7558.175 5748.243333 9337.736667 12 h after light 7559.894444333334 4759.3 9253.843333 1.5 h after dark 7545.991111 5479.156667 9073.703333 5.5 h after dark 7200.073333 5884.203333 9364.043333 9.5 h after dark 9883.804444333333 9095.843333 10644.9