Quarterly revenue fixtures

Reference sentence for the plain-text path: 31415-merged-cell-probe.

Table one: rectangular

RegionQuarterRevenueShare
NorthFirst quarter12018%
NorthSecond quarter13519%
SouthFirst quarter9012%
SouthSecond quarter10113%

Table two: a header that spans two columns

RegionRevenue by quarterShare
Third quarterFourth quarterYear
North140150545
South95110396

Table three: rowspan plus a merged subtotal

RegionQuarterRevenue
NorthFirst quarter120
Second quarter135
Third quarter140
Fourth quarter150
North subtotal545

Trailing paragraph so the last table is not the end of the document.