A decreasing trend is observed in the two more recent biannual averages of serious alert notifications for primary aromatic amines and metals, while decreasing for metals but increasing for primary aromatic amines in serious border rejection notifications.
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The sentences
More specifically, as shown in Table 3 , an increasing trend in the average percent (%) contribution share of migration of PAA has been noticed in the last biannual period, namely 2018–19 compared to the previous three periods.