To generate Capital motion based on perpetual inventory method

[teshager mazengia]

i have 43 countries each having 40 sectors. and i have also year t. i have gross fixed capital formation (GFCF) for each country each year, GFCF is not sector specific though it is repeated for all sectors by country. then for each country and year i want to generate capital motion as follows: K_t = (1-dleta)*K_t-1 + GFCF_t. Can anyone help me to fix such problem?