Should you ask for further analyses. O2 values are proportional to C ones as in cellulose, near to 1.1 ratio. A reference can be p326 of the book https://books.google.it/books?id=LuP1N0k8UF0C&pg=PA335&lpg=PA335&dq=bagasse+elemental&source=bl&ots=a0n9LLp78s&sig=GjTWMdXGCO5P37bjMdcABWVMCYA&hl=it&sa=X&ei=TUySVbHtNcfeUfCfpHA&ved=0CGoQ6AEwCA#v=onepage&q=bagasse%20elemental&f=false
Thanks for your answers Guido Bongi and Juan Casado. Sorry this information is not from my practical work.I will check again from the sources. I also notice the value for Hydrogen is not there.