Data visualize with matplotlib(solid line)

Nominal GDP

    from matplotlib import pyplot as plt

    years = [1950, 1960, 1970, 1980, 1990, 2000, 2010]
    gdp = [300.2, 543.3, 1075.9, 2862.5, 5979.6, 10289.7, 14958.3]

    plt.title('GDP')
    plt.ylabel('Billios of $')
    plt.plot(years,gdp,color='red',marker='o',linestyle='solid')
    plt.show()

*plt.plot(x,y,color,marker per year,linestyle)

there are several line style

'-', '--', '-.', ':', 'None', ' ', '', 'solid', 'dashed', 'dashdot', 'dotted'

fig-