This will be self-congratulatory, but teachers deserve a huge amount of the thanks for these results. We deal with increasing student complexity, bureaucratic r

This will be self-congratulatory, but teachers deserve a huge amount of the thanks for these results. We deal with increasing student complexity, bureaucratic requirements and degraded infrastructure to not only get the job done well, but to get it done to some of the highest standards in the world. Note too that we haven't just done well on the most recent PISA tests, we've been a consistent top level finisher across the three subject tests since PISA started over a decade ago.