However, Serena's serve improved gradually and having recovered from 3-1 down to take the second set tie-break, the world number one eventually overpowered her 20-year-old opponent.
After all, 0.1% is a big step up from nothing at all, and most existing solar technologies began with similarly poor efficiencies that were improved gradually over the course of time.
"It's a big task, New Zealand have gradually improved throughout the tournament, " he said.
Under pressure from consumer magazines they gradually improved their quality and have won recognition from critics and customers.
The technology has gradually improved and become relatively cheap to create.
But through his own efforts, he says, his health gradually improved.
"The pace of booking volumes remains healthy, enabling us to continue to catch up on occupancy levels, while pricing has gradually improved, " said Chairman and Chief Executive Micky Arison.
But it undermined the popularity both of the Concertacion government of President Eduardo Frei, a plodding and uninspired Christian Democrat, and of Mr Lagos, who ran a worthy but old-fashioned campaign, promising voters a fairer society, built gradually through positive discrimination for the disadvantaged, better state education and improved health services.
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The line-out improved with Nathan Hines and Worsley both claiming a couple of takes apiece, and gradually the tourists found some cohesion.
Gradually, they started to spend a bit more as stock prices and the economy improved, but they are not yet back to where they were before the recession.
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