2
4
5
3
3
3
Amazon's Alexa was released
2
5
5
4
6
8
14
16
19
25
40
36
35
53
52
46
40
58
50
57
64
43
53
53
58
70
60
67
67
61
58
53
78
ChatGPT's launch for public use
117
181
152
179
199
2017
2014
2023
200
150
100
50
0
250
S&P 500 Constituents Citing AI on Earnings Calls
AI's rapid rise has investors wondering: is the next "tech-bubble" here?
2020