I calculated the average of vowel inventory sizes from the phoible data and I weighted my calculations by speaker counts pulled from Wikipedia:
- Weighted Average Vowel Inventory Size: 13.43
- Weighted Median Vowel Inventory Size: 13
- Total Unique Languages Analyzed: 2,725
https://github.com/cldf-datasets/phoible/blob/master/cldf/inventories.csv






