user: Question: How many South Asians on average were in alberta in 2001 and in 2011 had 159055?
Columns: ['Province', 'South Asians 2001', '% 2001', 'South Asians 2011', '% 2011']
Types: ['text', 'real', 'text', 'real', 'text']
Sample row: ['Ontario', 554870.0, '4.9%', 1003180.0, '7.9%']
SQL:

assistant: SELECT AVG("South Asians 2001") FROM "Table" WHERE "Province" = 'alberta' AND "South Asians 2011" > 159055.0;