|
You are reading it wrong. It is still highly effective 6 months after, at 91.3%. It has lost a bit less than 4% efficacy in 6 months.
At that rate, you will hit 50% efficacy in 8.5 years.
__________________
James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
|