Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | 1801 | 1811 | 1821 | 1841 | 1851 | 1861 | 1871 | 1881 | 1891 | 1901 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Year | 1801 | 1811 | 1821 | 1841 | 1851 | 1861 | 1871 | 1881 | 1891 | 1901 |
| Population | 1602 | 1847 | 2364 | 3365 | 3832 | 3733 | 3903 | 3571 | 4201 | 4221 |
| Year | 1911 | 1921 | 1931 | 1951 | 1961 | 1971 | 1981 | 1991 | 2001 | 2011 |
| Population | 4527 | 4526 | 4779 | 5182 | 5291 | 5293 | 5673 | 6282 | 7521 | 8738 |
| Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 | Census: 1801–2001 2011 |
Question:
Name the 1821 with 1811 of 1921
Answer:
1931.0