2,277,079 / 21 days = 108,432 people per day
108,432 x 45 days in enrollment period = 4,879,455 people
4,879,455 <<<<<<<<<< 12,216,003 who signed up during 2017 enrollment period.
And that's if people continue to sign up at the same rate at which they signed up in the first 3 weeks. My guess is that there will be a rush at the deadline but that the majority of people who want to sign up (the very sick) have already done so in the beginning. My questions (just like the numbers on the tax plan for a median income in the US) are: why do people not check the math themselves, why do they believe all the BS and hype out there and why do they continue to spread that BS all over the internet when it is so easy to check?