MERRY CHIRSTMAS TO ALL BRILLIANT USERS!!!!!

According to the traditional song, on the first day of Christmas (25th December), my mother sent to me:

. A partridge in a pear tree

On the second day of Christmas (26th December), my mother sent to me THREE presents:

. Two turtle doves . A partridge in a pear tree

On the third day of Christmas (27th December and so on) my mother sent to me SIX presents:

. Three French hens . Two turtle doves . A partridge in a pear tree

This carries on until the the twelfth day of Christmas, when my mother sends me:

Twelve drummers drumming Eleven pipers piping Ten lords a-leaping Nine ladies dancing Eight maids a-milking Seven swans a-swimming Six geese a-laying Five gold rings Four calling birds Three French hens Two turtle doves A partridge in a pear tree

After the twelve days of Christmas are over, how many presents has my mother sent me altogether?