def gasoline_cost_sek(dist, sekpl=20.0, kmpl=9.4):
    """Gets cost of commute via car in Swedish Krona.
    Input
        dist: distance in kilometers (numeric)
        sekpl: Swedish Krona (SEK) per liter (L). Obtained from gasoline_price() function.
        kmpl: Kilometers (km) per liter (L). (Fuel efficiency)

    kmpl estimation from:
        https://www.bts.gov/content/average-fuel-efficiency-us-passenger-cars-and-light-trucks
    """
    return sekpl * dist / kmpl