97.9% ... there was another partial disruption (timeouts on API) .. excluding that one as well would end up in 99.7%.
OCSP - I could see only 2 incidents - both short 5 and 7 minutes (> 99.99%) but it's not clear here, whether lengths reflect the real downtime - or whether they may not include the time between the first reports and LE starting looking into it.
...