To give everyone a sense of what attendance percentages actually mean see if this makes sense:
96% (national av.) 1 and 1/2 weeks off school in a year
95% 2 weeks off
90% A month off school
80% A day a week off school on average - two whole months off in total!
Over the course of a primary school career, expected attendance would lead to around 10 weeks off school in total.
80% attendance over a primary school career would result in over 1 and a half YEARS off school!