متى سيركب الجميع السيارات الكهربائية؟

import matplotlib.pyplot as plt
import numpy as np
import math

x = np.linspace(2012, 2019, 8)
y1 = np.array([60936407, 63429200, 65708230, 66314155, 69464432, 70694834, 68690468,  64341693]) # -   
y2 = np.array([52605, 97507, 320713, 550297, 777495, 1227117, 2018247,  1940147]) # -   
y = y2/y1 #     

ymax=1 #       
Gmax=2025 #    " "
rmax=0.35 # 
k=1 # "1"  ,        
p0=0.5 #    " "
for j in range(10): #   " "
    x0=2025+j
    r=0.35
    
    for i in range(10): #      " "
            r=0.25+0.02*i
            y4=k*p0*math.e**(r*(x-x0))/(k+p0*(math.e**(r*(x-x0))-1))-y 
           # print(str(x0).ljust(20), str(r).ljust(20), max(abs(y4))) 
            if max(abs(y4))<=ymax: #            r
                ymax=max(abs(y4))
                Gmax=x0
                rmax=r
print(str(Gmax).ljust(20), str(rmax).ljust(20), ymax) #  " ",  r      

import matplotlib.pyplot as plt
import numpy as np
import math

x = np.linspace(2012, 2019, 8)
y1 = np.array([60936407, 63429200, 65708230, 66314155, 69464432, 70694834, 68690468,  64341693])
y2 = np.array([52605, 97507, 320713, 550297, 777495, 1227117, 2018247,  1940147])
y = y2/y1

k=1
p0=0.5

x0=2028   
r=0.37 
y1=k*p0*math.e**(r*(x-x0))/(k+p0*(math.e**(r*(x-x0))-1))
#      2012  2019 
fig, ax = plt.subplots(figsize=(30, 20), facecolor="#f5f5f5")
plt.grid()
ax.plot(x, y, 'o', color='tab:brown') 
ax.plot(x, y1)
#      2010  2050 
x = np.linspace(2010, 2050)
y2 = [k*p0*math.e**(r*(i-x0))/(k+p0*(math.e**(r*(i-x0))-1)) for i in x]
y3 = 0.99+0*x
fig, ax = plt.subplots(figsize=(30, 20), facecolor="#f5f5f5") 
ax.set_xlim([2010, 2050])
ax.set_ylim([0, 1])
plt.grid()             
plt.plot(x, y2, x, y3)