Mississippi River flooding wasn't as pronounced as its water level varies greatly but is typically highest in the spring, so minor flooding is not uncommon.

NPR: Floodwaters Rising After Storms Deluge Heartland

At the country level, confidence varies greatly with CEOs based in the emerging markets the most up beat.

FORBES: Where CEOs Are Most Optimistic About 2013

The level of investment varies depending on who you talk to.

FORBES: SSD Growth is Demand, not Supply, Limited as CEOs Claim

For secondary level there are two exams which certify the completion of first or second level, and assess knowledge on mathematics, social and natural sciences and philosophy (the number and content of subjects varies per level).

UNESCO: Country Profile: Chile

What we have found is that the level of entrepreneurship across countries varies and that high impact entrepreneurs are a rare breed indeed.

FORBES: High Impact Entrepreneurship: Following the Entrepreneurial Process

But the cost of assessing these people, to find out what level of assistance is needed, varies widely.

BBC: Audit Commission urges social care savings of ?300m

The level of the designer's participation varies, too: In some projects it's only skin-deep, but in others it extends down to faucets.

FORBES: The Glamour Factor

NPR's Jack Speer reports that the level of pay and benefits each company offers varies widely.

NPR: Firms Work to Locate and Pay Displaced Workers

While equipment varies, in most cases the only way to take advantage of the auto level and delay adjustments is to decode in the AV receiver.

ENGADGET: How to actually use Dolby TrueHD and DTS-HD HD