The delay triangles given below relate to a portfolio of property insurance policies, for which it may be assumed that the claims are fully run off by the end of development year 2. The cost of claims incurred each year is given in the table below:

	Development Year
Accident Year	0	1	2
2019	2527	1447	587
2020	3388	1788
2021	4713

The number of reported claims each year is given in the table below:

	Development Year
Accident Year	0	1	2
2019	130	65	10
2020	172	81
2021	256

Given that the total claims paid to date is 10,321 calculate the outstanding claims reserve for this cohort using the average cost per claim method.