If it was raised to let's say 8 per block back in 2017, then I'd assuming the chain size would be 'up to' around 2.4k gb by now. So anywhere between 500 (current size) to 2.4k

((52,560 blocks per year * 5.5 years)*8 mb)/1024 + by 2017 total storage of 146 gb = 2.4k gb