in game statistics are 0

[apokf98]

i have 100 hrs in the game and the harvest,sown,fertilize,cultivate statistics since the begining are 0 (both session and total) . while all the others stats look correct.why?,no mods

<statistics>
<traveledDistance>78.179115</traveledDistance>
<fuelUsage>389.976654</fuelUsage>
<seedUsage>0.000000</seedUsage>
<sprayUsage>0.000000</sprayUsage>
<workedHectares>0.000000</workedHectares>
<cultivatedHectares>0.000000</cultivatedHectares>
<sownHectares>0.000000</sownHectares>
<fertilizedHectares>0.000000</fertilizedHectares>
<threshedHectares>0.000000</threshedHectares>
<plowedHectares>0.000000</plowedHectares>
<workedTime>99.855812</workedTime>