Off the top of my head and a few I had to check, it looks like my number is 97 as of February 2019.
Now, as of July 2023, the number is now 105.
1: IL, US, IN
2: OH
3: IN, MI
4: Interstate, IL
5: IL
6: US, IL
7: IL
8: IL
9: US
10: Interstate, US
11: WI
12: US
13: WI
14: US
15: Interstate, WI (last 2 incarnations)
16: WI
17: Interstate, IL
18: US
19: IL, WI
20: Interstate, US, WI
21: IL, WI
22: IL, WI
23: WI
24: Interstate, WI
25: Interstate, IL
26: IL, WI
27: Interstate
28: WI
29: Interstate, IL, WI
30: Interstate, US, WI
31: IL, WI
32: IL, WI
33: IL, WI
34: US
35: Interstate
36: US
37: FL, IN
38: IL
39: Interstate, WI
40: Interstate, US, IL
41: Interstate, US
42: WI
43: Interstate
44: WI
45: Interstate, US
46: SD (I had to look this number up to make sure.)
47: IL
48: Former US in WV
49: WI
50: US, IL
51: US
52: US
53: IL
54: US
55: Interstate
56: IL
57: Interstate
58: IL
59, IL, WI
60: IL, WI
61: US
62: IL
63: US
64: IL
65: Interstate
66: Former US, MI
67: US
68: Interstate, IL
69: Interstate, US
70: Interstate, US
71: Interstate, IL
72: Interstate, IL
73: Interstate, WI
74: Interstate, US
75: Interstate, US, IL
76: Interstate, WI
77: Interstate, US
78: Interstate, WI
79: Interstate, US
80: Interstate
81: Interstate, WI
82: WI
83: IL, WI
84: Interstate, Former WI
85: Interstate, US
86: TX (I had to look this number up.)
87: Interstate, WI
88: Interstate
89: IL, WI
90: Interstate
91: WI
92: WI
93: Interstate
94: Interstate
95: Interstate
96: Interstate
97: IL
98: KS
99:WI
100: WI
101: AL
102: IL
103: WI (Former)
104: WI
105: