According to the definition provided in the introduction section, the number of bots that made a transaction is 96 in the past 60 days.

Introduction:

According to the question, the bot users should be defined in the first step. In this investigation, the bots are defined based on their number of transactions in one minute. If user has more than 20 transaction in minute, its considered as bot.

By the use of this definition, the number of bots and average users are estimated and shown in the next table for the past 60 days.

The success and failure rate for bots and average users are shown in these two pie figures. As hwon in the first figure, the success rate of bots is near 78% of their transactions and 22% of their transactions failed. This amount for average users is different from bots. For average users the success rate is 97.2% of their transactions.

In my opinion, the main reason for that is the uncapability of Terra blockchain in handling huge number of transactions in very low time (below 1 minute). But for average users, because of their number of transactions, the Terra blockchain could handle their requests and very small percent of their transactions failed.