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:
West Anglia Great Northern
Table title:
Fleet details
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Class </th><th colspan=1 rowspan=2 > Image </th><th colspan=2 rowspan=1 > Top speed </th><th colspan=1 rowspan=2 > Number </th><th colspan=1 rowspan=2 > Built </th><th colspan=1 rowspan=2 > Notes </th></tr>
<tr> <th colspan=1 rowspan=1 > mph </th><th colspan=1 rowspan=1 > km/h </th></tr>
<tr> <td colspan=1 rowspan=1 > 03 </td><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > 28.5 </td><td colspan=1 rowspan=1 > 45.9 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 20/01/1962 </td><td colspan=1 rowspan=1 > Used as shunter at Hornsey TMD </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 313 </td><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > 75 </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 41 </td><td colspan=1 rowspan=1 > 1976–1977 </td><td colspan=1 rowspan=1 > Moorgate/London King's Cross – Hertford North, Letchworth Garden City and Welwyn Garden City </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 315 </td><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > 75 </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > 18 </td><td colspan=1 rowspan=1 > 1980–1981 </td><td colspan=1 rowspan=1 > London Liverpool Street – Chingford, Cheshunt and Enfield Town London Liverpool Street – Hertford East (peak times and Sundays only); transferred to One in April 2004 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 317 </td><td colspan=1 rowspan=1 > 317316 at Cambridge.JPG </td><td colspan=1 rowspan=1 > 100 </td><td colspan=1 rowspan=1 > 160 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > 1981–1982 1985–1987 </td><td colspan=1 rowspan=1 > London King's Cross – Cambridge London Liverpool Street – Cambridge, Hertford East and Stansted Airport Stratford – Stansted Airport; 60 transferred to One in April 2004 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 365 </td><td colspan=1 rowspan=1 > 365530 arriving at Cambridge.JPG </td><td colspan=1 rowspan=1 > 100 </td><td colspan=1 rowspan=1 > 160 </td><td colspan=1 rowspan=1 > 40 </td><td colspan=1 rowspan=1 > 1994–1995 </td><td colspan=1 rowspan=1 > London King's Cross – Cambridge, King's Lynn and Peterborough; 24 originally, 16 added in 2004 and 2006 from South Eastern Trains </td></tr>
</table>
Question:
What are the different classes of fleets that West Anglia has?
Answer:
West Anglia Great Northern had a fleet of Class 313, Class 315, Class 317, Class 322 and Class 365s.