グラフの文字をtimes new roman　にしたい

前提・実現したいこと

Python初心者です．
rcParamsで文字の書式をTimes new roman に設定したのに凡例にしか適用されません．
初歩的な質問だとは思うのですが，ご教授お願いします．

該当のソースコード

Python
1matplotlib.rcParams['font.family'] = 'Times New Roman'
2matplotlib.rcParams['mathtext.default'] = 'regular'
3matplotlib.rcParams['xtick.top'] = 'True'
4matplotlib.rcParams['ytick.right'] = 'True'
5matplotlib.rcParams['xtick.direction'] = 'in'
6matplotlib.rcParams['ytick.direction'] = 'in'
7matplotlib.rcParams['axes.xmargin'] = '0' #'.05'
8matplotlib.rcParams['axes.ymargin'] = '.05'
9matplotlib.rcParams['savefig.facecolor'] = 'None'
10matplotlib.rcParams['savefig.edgecolor'] = 'None'
11matplotlib.rcParams['savefig.bbox'] = 'tight'
12matplotlib.rcParams['font.size'] = 16
13matplotlib.rcParams['axes.grid'] = 'False'
14
15w = 2
16p1 = ax1.bar(x + w/2, car, label = 'car', alpha = 0.5, color = 'blue', align = 'center', width = w)
17p2 = ax1.bar(x - w/2, ped, label = 'pedestrian',  alpha = 0.5, color = 'green', align = 'center', width = w)
18
19p3 = ax2.scatter(x , y_car, label = 'car accumulation', marker = 'o', color = 'blue',
20                 alpha = 0.8, facecolors = 'none', edgecolor = 'blue', linewidth = 1.5 )
21p4 = ax2.scatter(x , y_ped, label = 'ped accumulation', marker = 'o', facecolors = 'none', color = 'green',
22                 alpha = 0.8, edgecolor = 'green', linewidth = 1.5 )
23
24p5 = ax2.plot(x, y_car_pred, linestyle="--", label="car fitting (${R^2}$=0.997)", color = 'blue', alpha = 0.7)
25p6 = ax2.plot(x, y_ped_pred, linestyle="--", label="ped fitting (${R^2}$=0.996)", color = 'green' , alpha = 0.7)
26
27ax1.set_xlabel('start time(min)',fontsize=18)
28ax1.set_ylabel('number of people',fontsize=18)
29ax2.set_ylabel('F(x)',fontsize=18)
30ax1.tick_params(labelsize = 16)
31ax2.tick_params(labelsize = 16)
32
33
34p = [p1, p3, p5[0], p2, p4, p6[0]]
35ax1.legend(p, [i.get_label() for i in p], loc ='center right',edgecolor = 'black')