Rattitz Saga: Goku was around 468.
Saiyans Saga:He was 5000 when he first showed up. When he fought Nappa he was 8,000. Goku's Kaio KenX4 attack boosted him up to 36,000 when he was fighting Vegeta.
Frieza Saga:Goku when fighting the Ginyu Force was around 90,000. When he fought Ginyu himself he was around 180,000. When Goku fought Frieza(non-SSJ) he was 300,000. After he became a SSJ he was 15,000,000.
Cell Saga: After he became a permanent SSJ he was at 23,000,000.
To Return Home: