Sum of the Arts
Height (in feet) of the rogue wave depicted in Katsushika Hokusai's famed "The Great Wave off Kanagawa" (c.1830–32) = 32–39

Inspired by the Harper’s Index, Sum of the Arts is a periodic tabulation of numbers floating around the art world and beyond.
- Number of owls in the world with university library cards = 1
- Number of female architects in the United States in 1890, according to the census = 22
- Height (in feet) of the rogue wave depicted in Katsushika Hokusai’s famed “The Great Wave off Kanagawa” (c.1830–32) = 32–39
- Number of skeleton specimens at the Grant Museum of Zoology in London whose bones will be restored with 3D printing = 39
- Weight in tons of the ongoing AIDS Quilt memorial = 54
- Number of photographs a day the Himawari-8 weather satellite takes of Earth from 22,000 miles up = 144
- Number of Pachuca, Mexico, homes painted by local street artists to create a 20,000-square-meter mural = 209
- Number of used eyeglass lenses in a kinetic sculpture by artists Caitlind r.c. Brown and Wayne Garrett installed at the Pera Museum in Istanbul = 14,000
- Number of dahlias 60 volunteers will transform into a portrait of Vincent van Gogh at the Museumplein in Amsterdam to mark the 125th anniversary of the artist’s death = 50,000
- Estimated size in gigabytes the Museum of Modern Art’s digital collection will reach by 2025 = 1,200,000