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:
1948 in baseball
Table title:
MLB statistical leaders
Table:
<table id='hittask' contenteditable='False'>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > American League </td><td colspan=2 rowspan=1 > National League </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > AVG </td><td colspan=1 rowspan=1 > Ted Williams BSR </td><td colspan=1 rowspan=1 > .369 </td><td class="highlighted"  colspan=1 rowspan=1 > Stan Musial SLC </td><td class="highlighted"  colspan=1 rowspan=1 > .376 </td></tr>
<tr> <td colspan=1 rowspan=1 > HR </td><td colspan=1 rowspan=1 > Joe DiMaggio NYY </td><td colspan=1 rowspan=1 > 39 </td><td colspan=1 rowspan=1 > Ralph Kiner PIT & Johnny Mize NYG </td><td colspan=1 rowspan=1 > 40 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > RBI </td><td colspan=1 rowspan=1 > Joe DiMaggio NYY </td><td colspan=1 rowspan=1 > 155 </td><td class="highlighted"  colspan=1 rowspan=1 > Stan Musial SLC </td><td class="highlighted"  colspan=1 rowspan=1 > 131 </td></tr>
<tr> <td colspan=1 rowspan=1 > Wins </td><td colspan=1 rowspan=1 > Hal Newhouser DET </td><td colspan=1 rowspan=1 > 21 </td><td colspan=1 rowspan=1 > Johnny Sain BSB </td><td colspan=1 rowspan=1 > 24 </td></tr>
<tr> <td colspan=1 rowspan=1 > ERA </td><td colspan=1 rowspan=1 > Gene Bearden CLE </td><td colspan=1 rowspan=1 > 2.43 </td><td colspan=1 rowspan=1 > Harry Brecheen SLC </td><td colspan=1 rowspan=1 > 2.24 </td></tr>
<tr> <td colspan=1 rowspan=1 > Ks </td><td colspan=1 rowspan=1 > Bob Feller CLE </td><td colspan=1 rowspan=1 > 164 </td><td colspan=1 rowspan=1 > Harry Brecheen SLC </td><td colspan=1 rowspan=1 > 149 </td></tr>
</table>
Question:
Who led the NL in average and RBIs during 1948, and what were his totals in those categories?
Answer:
Musial led the NL in average (.376) and RBI (131).