What is the percentage of Bell Wireline of the total BCE adjusted EBITDA in 2019?
{"Bell Wireless": {"2019": 3842.0, "2018": 3521.0, "$ CHANGE": 321.0, "% CHANGE": 9.1}, "Bell Wireline": {"2019": 5414.0, "2018": 5321.0, "$ CHANGE": 93.0, "% CHANGE": 1.7}, "Bell Media": {"2019": 850.0, "2018": 693.0, "$ CHANGE": 157.0, "% CHANGE": 22.7}, "Total BCE adjusted EBITDA": {"2019": 10106.0, "2018": 9535.0, "$ CHANGE": 571.0, "% CHANGE": 6.0}}
bell_wireline_2019 = df["Bell Wireline"]["2019"]
total_bce_adjusted_ebitda_2019 = df["Total BCE adjusted EBITDA"]["2019"]
answer = bell_wireline_2019 / total_bce_adjusted_ebitda_2019 * 100.0