What years will Christmas fall on Sunday during the 21th century?

During the 21st century, Christmas will fall on a Sunday in the years 2011, 2016, 2022, 2033, 2039, 2044, 2050, 2061, 2067, 2072, 2078, 2089, 2095, and 2100. These dates are determined by the calendar cycle and how leap years affect the progression of days through the years.