In file no58-2013jan25agnes5of8.csv Provided and calculated CO2i donot agree. Make sure input data are ok Original CO2i,Calculated CO2i 285.6519878000000 , 291.5272695505033 266.9736513000000 , 272.6270311342852 292.5210481000000 , 298.0523758796853 324.1380368000000 , 330.1674885625361 360.8260776999999 , 367.5796804358509 408.6165993999999 , 415.9779920980708 493.0305251000000 , 500.9289210806624 583.5684687999999 , 591.9347198547500 681.9818025000001 , 690.5832101095107 825.0792563000000 , 833.7216965360993 960.6888759000002 , 969.4838530669102