When is Shemini Atzeret / Simchat Torah in 2011, 2012, 2013, 2014 and 2015?

The holiday of Shemini Atzeret/Simchat Torah, falls on the Hebrew calendar dates of 22-23 Tishrei—Shemini Atzeret on the former date, Simchat Torah on the latter. Here are the coinciding secular dates for the upcoming years:

2011:   October 19 (at sundown)-21

2012:   October 7 (at sundown)-9

2013:   September 25 (at sundown)-27

2014:   October 15 (at sundown)-17

2015:   October 4 (at sundown)-6

Note: The Jewish calendar date begins at sundown of the night beforehand. Thus all holiday observances begin at sundown on the secular dates listed, with the following day being the first full day of the holiday. Jewish calendar dates conclude at nightfall.

See also:

When is Rosh Hashanah in 2011, 2012, 2013, 2014 and 2015?
When is Yom Kippur in 2011, 2012, 2013, 2014 and 2015?
When is Sukkot in 2011, 2012, 2013, 2014 and 2015?
When is Chanukah in 2011, 2012, 2013, 2014 and 2015?
When is Purim in 2011, 2012, 2013, 2014 and 2015?
When is Passover in 2011, 2012, 2013, 2014 and 2015?
When is Shavuot in 2011, 2012, 2013, 2014 and 2015?
When is the Ninth of Av in 2011, 2012, 2013, 2014 and 2015?