There were some difference on fast closure, slow closure and total closure, but there were no statistically significant difference.

The closure of the fast-food giant's three restaurants on Monday means Iceland will become one of the few European countries, including Albania and Bosnia and Herzegovina, without a McDonald's.

More importantly, it now takes only a little over half a day to fix a defect, which means that within a two-week sprint, it's possible to get very fast defect closure.