Salary Survey Extra is a series of periodic dispatches that give added insight into the findings of our most recent Salary Survey. These posts contain previously unpublished Salary Survey data.

Every so often it's time to write one of these Salary Survey Extra pieces and we don't have an organizing theme. Usually that's because we just want to share some of the stuff from those Not So Serious questions that we ask at the end of the every survey.

Remember how a few years ago in New York City then-powerful Mayor Michael Bloomberg turned in Don Quixote and decided to go out a-tiltin' at windmills? One of the crusading mayor's perhaps least well-aimed blows was struck against Big Soda.

The mayor was attacking on both figurative and literal fronts. The entities most likely to suffer from his war on soft drinks were companies like Coca-Cola and Pepsico, figurative behemoths of the beverage industry. And the actual target of Bloomberg's ire was the literally gargantuan soda refill cups (some as big as 128 ounces) in use across the city.

The crusade ended up not really changing anything, but here we are a few years later wondering whether there actually is an optimal size of refill beyond which no further soda is needed. So, yeah, we decided to put the matter to survey respondents and see what certified Big Data professionals have to say. Here's what we learned:

The perfect size of soda refill cup is:

I don't drink soda. — 38.4 percent of respondents
How come this question isn't about coffee? — 22.2 percent
16 ounces — 18.2 percent
32 ounces — 14.1 percent
64 ounces — 4 percent
48 ounces — 3 percent

And there you have it. Most Big Data professionals either don't drink soda, or (apparently) only drink it when they can't get coffee. Among the rest, 16 ounces is declared the optimal size of soda refill, though by a rather narrow margin over 32 ounces. If you prefer to tank up with either 48 or 64 ounces, then you're an outlier.

Also, while we're not political pollsters in the slightest degree, we do live and work in the United States, and we marvel along with the rest of the country at the current state of political affairs. Hence, we decided to do a little informal job approval assessment of the ongoing efforts of President Donald J. Trump. Here's how things turned out:

How would you rate Donald Trump's performance over his first three months as president?

There's been some good and some bad. — 33 percent
Honestly, I'm a little surprised that we're still able to have this conversation. — 19 percent
Worst president ever. — 15 percent
I don't live in the United States. Thank goodness. — 15 percent
I don't live in the United States. Why would I care? — 13 percent
Best president ever. — 5 percent