yeah  1 block = 6.5 coins counting fees

10 minute a block = 6.5/10  or  .65 coins in a minute maybe .625 coins in a minute for the network if you don't count the tx fees.     so   60/.625 = 96 seconds per new coin

for entire network.

1 percent of the network would do 1 coin every 9600 seconds or 9600/60 = 160 minutes to earn 1 coin if you had 23,200 53th s17pros.

nice catch