What are the gun laws like where you are from? 
In america here it depends on the state just like other countries! Some countries have restrictive firearm policies, and some have relaxed gun policies. America basically mirrors that sentiment based on the state!
Which state has the strictest gun laws?
I can't tell you that specifically but i can tell you of roughly 2.5 million deaths total in the US in 2013, only ~1.3% were related to guns! 
How many mass shootings are there a year? 
Between 1967 and 2017 there were roughly 146 mass shootings. If you average that over roughly 50 years if my math is correct that would be like 3 a year however the number has increased recently so its more like there were less back then and more and more as of recently.
How many people constitute a mass shooting?
Mass shooting
A mass shooting is an incident involving multiple victims of firearms-related violence. There is no widely accepted definition of the term "mass shooting".
The United States' Congressional Research Service acknowledges that there is not a broadly accepted definition, and defines a "public mass shooting" as an event where someone selects four or more people indiscriminately, and kills them, echoing the FBI's definition of the term "mass murder". 
Definitions.
The characterization of an event as a mass shooting
policies that match New Mexico state law and honor New Mexico concealed carry permits, other tribes do not recognize any concealed carry permit regardless of where it was issued, and have far more restrictive gun control laws. Tribes with laws that do not match New Mexico state law have policies on open and concealed carry that vary from "No-Issue" to "Shall-Issue," depending on the tribal nation. Some Native American reservations that do allow open or concealed carry (but do not honor the New Mexico Concealed Handgun