What are the most funded sectors per country based on new RBM framework
Arguments
- year
 A numeric value or a list of value.
- programme_lab
 A character vector corresponding to the name of the programme.
- iati_identifier_ops
 A character vector corresponding to the name of the operation.
- ctr_name
 A character vector corresponding to the name of the country.
Examples
show_sectors_rbm( year =  c(2017, 2018, 2019, 2020, 2021, 2022), 
             ctr_name = "Brazil")