This[1] is a good place for high level, but it won't help you individually. Sodium only has the ability to impact blood pressure by 2-3mmHg diastolic and 5mmHg systolic, so limiting its of very little value for most[2].

My own personal experience reducing my creeping blood pressure came not from curing salt but from curing carbs. When carbs are reduced, the kidneys begin functioning better, reducing fluid in the blood which reduces blood pressure far more successfully than curing salt. This is just one of the many positive metabolic effects of low carb, high fat diets that are very well documented in scientific literature (others include normalized blood sugars, reduced inflammation, reduced liver and visceral fat, improved blood lipids, weight regulation and improved insulin sensitivity).

1. http://www.iom.edu/Reports/2013/Sodium-Intake-in-Populations...

2. Individuals vary. This is not medical advice. See a physician. Yada yada.