List top-level categories (PXWeb NSO root)
Examples
sectors <- nso_sectors()
head(sectors)
#> # A tibble: 6 × 3
#> id type text
#> <chr> <chr> <chr>
#> 1 Economy, environment l Economy, environment
#> 2 Education, health l Education, health
#> 3 Historical data l Historical data
#> 4 Industry, service l Industry, service
#> 5 Labour, business l Labour, business
#> 6 Population, household l Population, household
