Oxygen - 65%, Carbon - 18%, Hydrogen - 10%, Nitrogen - 3%, Calcium - 1.5%, Phosphorus - 1%, Potassium - 0.25%, Sulfur - 0.25%, Sodium - 0.15%, Chlorine - 0.15%, Magnesium - 0.05%, iron - 0.006%, fluorine - 0.0037%, zinc - 0.0032%, silicon - 0.002%, rubidium - 0.00046%, strontium - 0.00046%, bromine - 0.00029%, lead - 0.00017%, copper - 0.0001%, aluminum - 0.000087% and another 0.633533% of other elements