<Tr> <Td> </Td> <Td> 1.492% </Td> <Td> 0.901% </Td> <Td> 1.886% </Td> <Td> 2.215% </Td> <Td> 1.043% </Td> <Td> 0.980% </Td> <Td> 0.927% </Td> <Td> 2.844% </Td> <Td> 1.535% </Td> <Td> 1.740% </Td> <Td> 1.584% </Td> <Td> 2.000% </Td> <Td> 1.043% </Td> <Td> 0.281% </Td> <Td> 0.822% </Td> </Tr> <Tr> <Td> </Td> <Td> 2.782% </Td> <Td> 3.260% </Td> <Td> 2.732% </Td> <Td> 4.019% </Td> <Td> 3.882% </Td> <Td> 0.776% </Td> <Td> 4.501% </Td> <Td> 1.463% </Td> <Td> 1.486% </Td> <Td> 3.895% </Td> <Td> 1.242% </Td> <Td> 0.565% </Td> <Td> 0 </Td> <Td> 0.281% </Td> <Td> 0.740% </Td> </Tr> <Tr> <Td> d </Td> <Td> 4.253% </Td> <Td> 3.669% </Td> <Td> 5.076% </Td> <Td> 5.010% </Td> <Td> 4.992% </Td> <Td> 3.044% </Td> <Td> 3.736% </Td> <Td> 5.206% </Td> <Td> 4.702% </Td> <Td> 3.725% </Td> <Td> 5.933% </Td> <Td> 5.858% </Td> <Td> 1.575% </Td> <Td> 1.043% </Td> <Td> 3.475% </Td> </Tr> <Tr> <Td> </Td> <Td> 12.702% </Td> <Td> 14.715% </Td> <Td> 16.396% </Td> <Td> 12.181% </Td> <Td> 12.570% </Td> <Td> 8.995% </Td> <Td> 11.792% </Td> <Td> 9.912% </Td> <Td> 10.149% </Td> <Td> 7.352% </Td> <Td> 18.91% </Td> <Td> 15.453% </Td> <Td> 6.418% </Td> <Td> 7.968% </Td> <Td> 7.562% </Td> </Tr>

Which letter of the english alphabet occurs least often in writing