def operatingCost(fuel, oilLube, tires, maint, H):
    """
    fuel = annual fuel cost
    oilLube = annual oil and lubricant costs
    tires = tire cost/hour inc. maintenance
    maint = maintenance and repair costs
    H = Productive hours
    """
    hMaint = maint/H
    return {'Hourly maintenance and repair': [hMaint],
            'Fuel': [fuel],
            'Oil & lubricants': [oilLube],
            'Tires': [tires],
            'Operating cost': [fuel+hMaint+oilLube+tires]}