#visualization of passport power
0=visa_required
1=visa_on_arrival
2=visa_free
3=eta
4=mother country
reference: https://github.com/alsonpr/Passport-Index-Dataset
#visualization of passport power
0=visa_required
1=visa_on_arrival
2=visa_free
3=eta
4=mother country
reference: https://github.com/alsonpr/Passport-Index-Dataset