Headcount by year for some internet companies

gistfile1.txt

# Caveat that picking "year one" is kind of arbitrary, and that these
# are just random numbers from the internet, not meant as canonical sources

Year  Google  Facebook  Twitter  Uber
1     11      7         8	
2     60      15        29	
3     284     150       130      60
4     682     450       350      170
5     1628    850       833      1000
6     3021    1218      2712
7     5680    2127      3638     6700