Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_49796 ( "Province" text, "South Asians 2001" real, "% 2001" text, "South Asians 2011" real, "% 2011" text )

### Question ###
How many South Asians on average were in Alberta in 2001 and in 2011 had 159,055?

### Accurate SQL ###

SELECT AVG("South Asians 2001") FROM table_49796 WHERE "Province" = 'alberta' AND "South Asians 2011" > '159,055'