Update... My result for the last 10 days (last 240 h):
cause 5...Correct shutdown
cause 3...Hard shutdown (after frozen screen)
cause -11...I have manually reset my SMC
cause 1...Couldn't find any explanation for this code in the www. Any ideas???
Timestamp Thread Type Activity PID TTL
2020-05-15 09:06:35.856945+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-15 09:45:51.588578+1000 0xd1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-15 09:47:28.516679+1000 0x1cdc Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-15 13:33:19.349935+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-15 15:06:43.292733+1000 0xd1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-15 16:22:33.063739+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-15 16:35:17.323802+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 3
2020-05-16 10:18:15.717327+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-16 12:36:47.042400+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 3
2020-05-16 16:09:13.590019+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-16 17:51:29.155964+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 3
2020-05-16 19:00:05.834990+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-17 09:49:30.440849+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-18 09:10:34.264222+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-18 11:46:42.755307+1000 0xd2 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -11
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Log - Default: 15, Info: 0, Debug: 0, Error: 0, Fault: 0
Activity - Create: 0, Transition: 0, Actions: 0