series,Cache refresh period T (seconds),Mean exposure (seconds)
Propagation 0 seconds,0,0.0
Propagation 0 seconds,1,0.5
Propagation 0 seconds,2,1.0
Propagation 0 seconds,4,2.0
Propagation 0 seconds,8,4.0
Propagation 0 seconds,16,8.0
Propagation 1 second,0,1.0
Propagation 1 second,1,1.5
Propagation 1 second,2,2.0
Propagation 1 second,4,3.0
Propagation 1 second,8,5.0
Propagation 1 second,16,9.0