What's in breast milk?

Having "studied" the contents of various brands of breastmilk subsititues, Mummy finally found what's the contents in breastmilk:

In the second year (12-23 months), 448 mL of breastmilk (that's about 1/2 or 2/3 of what I drink everyday) provides:
29% of energy requirements
43% of protein requirements
36% of calcium requirements
75% of vitamin A requirements
76% of folate requirements
94% of vitamin B12 requirements
60% of vitamin C requirements

"Breast milk continues to provide substantial amounts of key nutrients well beyond the first year of life, especially protein, fat, and most vitamins." -- Dewey 2001

-- Dewey KG. Nutrition, Growth, and Complementary Feeding of the Breastfed Infant. Pediatric Clinics of North American. February 2001;48(1).