Abnormal data was found only in 2020

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Hi
I have added a new area to the IEA file and the data has been adjusted. However, after running out the Model Interface, it was found that the data was particularly large only for 2020.

On the demand side, the data anomaly appeared in 2020 trn_feight

On the supply side, the data anomaly is in oil-refining in 2020

I have checked the calibration data for 2010 and 2015 and found that there are no issues with the data.The data from 2025 are also consistent with the actual situation.Only in year 2020 have strange tendency. What could be the possible reasons for the outliers in the data only for 20201? Thank you.