National Grade A (Mathematics): the average score is 59.5, and the difficulty coefficient is 0.39. National Grade A (number of papers): the average score is 63.7 and the difficulty coefficient is 0.42. National Paper B (Mathematics): the average score is 60.0, and the difficulty coefficient is 0.40. National Volume B (number of volumes): the average score is 62.0 and the difficulty coefficient is 0.4 1. The national new high examination paper 1: the average score is 52.4, and the difficulty coefficient is 0.35. The national new high examination paper 2: the average score is 49.2, and the difficulty coefficient is 0.33. Beijing Volume: The average score is 62.8, and the difficulty coefficient is 0.42. Tianjin paper: the average score is 60. 1, and the difficulty coefficient is 0.40. Zhejiang Volume: The average score is 49.6, and the difficulty coefficient is 0.33.