Give me a list of the last 5 NHL championship teams
2022 Colorado Avalanche
2021 Tampa Bay Lightning 
2020 Tampa Bay Lightning 
2019 St Louis Blues
2018 Washington Capitals
<START_INST>Give me a list of the last 5 NHL championship teams<END_INST><START_CTX><END_CTX><START_A>2022 Colorado Avalanche
2021 Tampa Bay Lightning 
2020 Tampa Bay Lightning 
2019 St Louis Blues
2018 Washington Capitals<END_A>