As of 23.07.2009, Spain has ceased to communicate individual cases. The estimates are made weekly by the system of cases/100.000 hab. rate, through the Influenza Sentinel Network in Spain (Baleares 2008 Census: 1,071,221). The values for each week are simultaneous and not cumulative. 81 previous confirmed cases.
Week 30: 55.06 x 10.71221 = 590 cases
81 + 590 = 671 cumulative cases.
Week 31: 35.93 x 10.71221 = 385 cases
671 + 385 = 1,056 cumulative cases.
Week 32: 51.24 x 10.71221 = 549 cases.
1,056 + 549 = 1,605 cumulative cases.
Week 33: 52,36 x 10,71221 = 561 cases.
1.605 + 561 = 2.166 cumulative cases.
Week 34: 37,12 x 10,71221 = 398 cases.