Sensex continued its decline for the sixth day today, opening 161 points down on sustained selling in line with weak global trends and sober domestic market sentiment on the back of low industrial output. The 30-share barometer, which had lost 440 points in thelast five sessions, slumped by another 161 points to 19,102 level during the first few minutes of trade today, with realty, consumer durables and metal stocks remaining under pressure. In a similar fashion, the wide-based National Stock Exchange Nifty index slid by 50 points to 5,735 points. Brokers said a weakening Asian trend followed by lower closing in the US market influenced the trading sentiments.