What is battlebots winners by year?

Here are the winners of Battlebots by year:

Season 1 (1999): BioHazard

Season 2 (2000): Ziggo

Season 3.0 (2001): T-Minus

Season 4.0 (2002): Ziggo

Season 5.0 (2002): BioHazard

Season 6.0 (2003): T-Minus

Season 7.0 (2004): Hazard

Season 8.0 (2015): Bite Force

Season 9.0 (2016): Tombstone

Season 10.0 (2018): Bite Force

Season 11.0 (2019): Bite Force

Season 12.0 (2020): Undefeated due to COVID-19 pandemic.