[lemma=double] [□=□] □ □ □
[lemma=double] [lemma=□] □ □ □
[lemma=double] [tag=□] □ □ □
PBS outlays doubled in the last five years and such a rate of growth is clearly unsustainable . The number of eighth-graders meeting the state mathematics benchmark doubled in the last four years . The number of protected areas that bridge international borders has more than doubled in the last decade , from 59 in 1988 to more than 169 in 2001 . They point to other statistics such as this : Soft drink consumption by kids has doubled in the last 25 years at the very same time the number of overweight kids in America has skyrocketed . Although they do n't boast about it , their statistics also show that the number of teenage girls getting implants has more than doubled in the last 3 years .