Opinion on the best Prime Minister of the United Kingdom 2019

None of these/don't knows excluded *Survey date and count for the most recent survey, previous dates and counts as follows;
November 27-29, 2019 (2,018)
November 20-22, 2019 (2,003)
November 13-14, 2019 (2,008)
November 6-8, 2019 (2,001)
October 30-November 1 (2,004)
October 23-25 (2,001)
October 15-17 (2,001)
October 3-4 (2,006)
September 25-27 (2,007)
September 19-20 (2,004)
September 11-13 (2,002)
September 4-6 (2,009)
August 8-9 (2,003)