What's wrong with the median price calculation?

Run the following scripts with Python:

print(s.get_feed_history()['current_median_history'])

{'base': '0.340 SBD', 'quote': '1.000 STEEM'}

for i in s.get_feed_history()['price_history']:
    print(i['base'][:-4])

0.356
0.356
0.355
0.320
0.318
0.308
0.309
0.309
0.308
0.309
0.309
0.307
0.306
0.305
0.303
0.304
0.305
0.307
0.309
0.310
0.309
0.308
0.308
0.308
0.308
0.311
0.311
0.328
0.329
0.331
0.333
0.334
0.335
0.336
0.335
0.331
0.331
0.332
0.332
0.334
0.333
0.333
0.332
0.331
0.334
0.342
0.340
0.341
0.344
0.356
0.352
0.350
0.352
0.355
0.355
0.351
0.350
0.347
0.347
0.348
0.347
0.346
0.343
0.343
0.343
0.347
0.350
0.352
0.351
0.350
0.350
0.352
0.355
0.357
0.357
0.354
0.354
0.354
0.354
0.353
0.352
0.347
0.342
0.342

The median of the numbers below should match 0.340, but it does not. Do you know what should be the problem? This is definitely not the problem related to the haircut.