StockDividend dataset have wrong data type about finmind HOT 1 CLOSED

import requests
import pandas as pd
url = "http://api.finmindtrade.com/api/v2/data"
parameter = {
    "dataset": "StockDividend",
    "stock_id": "2330",
    "date": "2019-01-01",
}
data = requests.get(url, params=parameter)
data = data.json()
data = pd.DataFrame(data['data'])

for col in list(data.columns):
    print(data[col].unique())



['2019-06-30' '2019-09-25' '2019-12-25' '2020-03-25' '2020-06-24'
 '2020-09-23']
['2330']
['107年' '108年第1季' '108年第2季' '108年第3季' '108年第4季' '109年第1季']
[0.]
[0.]
['']
[0.]
[0.]
[0.]
[0.]
[8.  2.  2.5]
[0.]
['2019-06-24' '2019-09-19' '2019-12-19' '2020-03-19' '2020-06-18'
 '2020-09-17']
['2019-07-18' '2019-10-17' '2020-01-16' '2020-04-16' '2020-07-16'
 '2020-10-15']
[0.]
[0.]
[0.]
[0.]
[0.]
[25930380458]
['2019-06-06' '2019-07-09' '2019-08-14' '2019-11-14' '2020-02-14'
 '2020-05-14']
['15:47:30.000000000' '18:33:02.000000000' '15:27:02.000000000'
 '17:01:07.000000000' '15:10:50.000000000' '10:51:55.000000000']