http://gf.nd.gov/news/stocking-reque...aters-increase

"...20 years ago approximately 50-70 waters were stocked annually with walleye fingerlings, with the number of waters growing to 100 in the early 2000s. This year, 156 waters are scheduled to receive a share of 9 million fingerlings. ?The growth in walleye waters is directly correlated to the number of public fishing waters we manage,? Weigel said."