Symmetry and Antisymmetry of the CMB Anisotropy Pattern

Table 1

The parity asymmetry of WMAP data (2≤𝑙≤22).

Data	𝑃^+/𝑃^−	𝑃 value
WMAP7	0.7076	0.0031
WMAP5	0.7174	0.0039
WMAP3	0.7426	0.0061