District of Columbia: 18.8K additional total enrollments during off-season

The DC exchange has this frustrating habit where they do issue regular, easy-to-read enrollment reports...but they keep using cumulative numbers since 2013 in those reports. I honestly have no idea why they do it this way; since people are constantly moving on and off of different types of coverage, and even those who keep the same policy have to renew those policies every year anyway, so reporting the multi-year cumulative number of enrollments makes about as much sense to me as Ford reporting how many cars they've sold since 1903.

However, by simply comparing the cumulative numbers against older cumulative numbers, I can use the difference to see how things are going during the off season, like so:

More Than 225,000 People Enrolled in Health Coverage Through DC Health Link from October 1, 2013 to June 10, 2016

• 226,050 people have enrolled in health coverage through DC Health Link in private insurance or Medicaid:
• 35,536 people enrolled in a private qualified health plan,
• 161,911 people have been determined eligible for Medicaid, and
• 28,603 people enrolled through the DC Health Link small business marketplace (includes Congressional enrollment).

...compared to this, from the end of 2016 open enrollment on 2/01/16:

Since October 1, 2013 when DC Health Link opened for business, approximately 207,195 people have come through DC Health Link: 33,379 people enrolled in private health insurance through the individual marketplace; 147,567 people determined eligible for Medicaid; 26,249 have been covered through SHOP, which includes people covered through small businesses in the District and Members and staff from the US Congress. 

Subtract it out and you get the following off-season additions:

• 18,855 total
• 2,157 private QHPs
• 14,344 Medicaid
• 2,354 small business enrollees