Can someone with more knowledge check the information below please!

Carbon Dioxide (CO2) = around 13.5% = 14.7 parts of air to 1 part of fuel
Carbon Monoxide (CO) = result of too much fuel or too little oxygen = normally just under 1%.
HC = the lowest HC reading is slightly weaker than 14.7:1 at around 15:1.
Oxygen (O2) = An over-rich mixture will result in a low or zero oxygen emission; an excessively weak mixture will result in a high oxygen reading. = expect an O2 reading of less than 0.5%
Oxides of Nitrogen (NOX) = A reduction of NO2 emissions can be achieved with lower compression ratios, a slightly rich mixture and retarded ignition timing. If you have been paying attention you might realise that these are completely the opposite of that required reducing other emissions. Value unknown!

CO and CO alone