The rest of the paragraph you're sourcing states: "Amnesty International believed that the total figure was likely to be much higher.[28] According to "The Death Penalty in China: Reforms and Its Future", "it also represents the most conservative estimate of death sentences and executions in China due to the following accounting rules: 1) when there is doubt of accuracy, figures were excluded; 2) where two conflicting reports existed, the lower figure was used; 3) when a combined figure of death sentences and prison sentences was given, only one death sentence was recorded; and 4) when a group was sentenced to death, only one sentence was entered."[25]