Table 4: Angular spread for different floors in China measurement.

Floor EASD (°) EASA (°) AASD (°) AASA (°)

1st 20.8 27.4 20.4 45.5
2nd 20.6 20.9 12.5 42.2
3rd 19.5 22.3 19.3 43.3
5th 20.8 22.1 18.0 40.9
7th 26.0 28.3 17.9 43.1