Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Supermarine Spitfire (Griffon-powered variants)
Table title:
Production
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Mark </th><th colspan=1 rowspan=1 > Built by </th><th colspan=1 rowspan=1 > Numbers Built </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > F Mk XII </td><td colspan=1 rowspan=1 > Supermarine </td><td colspan=1 rowspan=1 > 100 </td><td colspan=1 rowspan=1 > First Mk XII 13 October 1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > F Mk XIV, FR Mk XIV </td><td colspan=1 rowspan=1 > Supermarine </td><td colspan=1 rowspan=1 > 957 </td><td colspan=1 rowspan=1 > First Mk XIV RB142 28 October 1943 </td></tr>
<tr> <td colspan=1 rowspan=1 > F Mk XVIII </td><td colspan=1 rowspan=1 > Supermarine </td><td colspan=1 rowspan=1 > 300 </td><td colspan=1 rowspan=1 > First Mk XVIII June 1945 </td></tr>
<tr> <td colspan=1 rowspan=1 > PR Mk XIX </td><td colspan=1 rowspan=1 > Supermarine </td><td colspan=1 rowspan=1 > 224 </td><td colspan=1 rowspan=1 > First Mk XIX RM626 May 1944 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > F Mk 21 </td><td colspan=1 rowspan=1 > Castle Bromwich </td><td colspan=1 rowspan=1 > 120 </td><td class="highlighted"  colspan=1 rowspan=1 > First Mk 21 LA187 27 January 1944 </td></tr>
<tr> <td colspan=1 rowspan=1 > F Mk 22 </td><td colspan=1 rowspan=1 > Supermarine, Castle Bromwich </td><td colspan=1 rowspan=1 > (27) + (260); 287 </td><td colspan=1 rowspan=1 > First Mk 22 March 1945 </td></tr>
<tr> <td colspan=1 rowspan=1 > F Mk 24 </td><td colspan=1 rowspan=1 > Supermarine </td><td colspan=1 rowspan=1 > 54 </td><td colspan=1 rowspan=1 > First Mk 24 March 1946 </td></tr>
</table>
Question:
When was the first Mk 21 LA187 produced?
Answer:
The first Mk 21 LA187 was produced in 1944.