Well, I didn't drive much this month according to FleetCarma stats (Charge the north initiative)
My 2019 March stats are:
ODO 161,996 km
Distance logged: 1,637 km=> 90% were Electric: 1,473 e-km, so 10%: 164 km on gas
Fuel consumed : 6L x $1.50/L = $9
Electricity usage: 335kWh x $0.105/kWh = $35 **
$9 + $35 = $44 / 1,637 km => $2.70 / 100 km
** Even lower since I recharge my Volt every working at work, so about half of that amount.