What was the last year Nadal won the US Open?
2019
2018
2018
2019
2018
2019
2018
2019
2018
2019
2017
2018
2021
2016
2019
2017
2018
2016
2021
2019
2017
2018
2016
2019
2021
2017
2018
2016
2019
2017
2018
2021
2016
2019
2017
2018
2016
2021
2019
2017
2018
2015
2016
2019
2021
2017
2018
2015
2016
2019
2017
2018
2015
2021
2016
2019
2017
2018
2015
2016
2021
2019
2017
2018
2020
2019 US Open
2015
2016
2014
2019
2021
2017
2018
2020
2015
2016
2014
2019
2017
2018
2020
2015
2021
2016
2014
2019
2017
2018
2020
2015
2016
2014
2021
2019
2017
2018
2020
2015
2016
2014
2023
2019
2019 US Open
2021
2017
2020
2015
2016
2014
2019
2016 US Open
2023
2017
2020
2015
2022
2021
2016
2013
2014
2013 US Open
2015 US Open
2017
2023
2020
2015
2016
2013
2014
2022
2021
2017
2020
2015
2016
2013
2014
2023
2012
2022
2021
2017
2020
2019 US Open
2015
2016
2013
2014
2023
2012
2020
2015
2022
2021
2016 US Open
2013
2014
2012
2013 US Open
2023
2020
2015 US Open
2015
2013
2014
2022
2021
2012
2020
2015
2013
2014
2023
2019 US Open
2012
2022
2021
2020
2015
2013
2014
2023
2012
2020
2015
2022
2021.
2021
2013
2026
2014
2016 US Open
2012
2023
2020
2015
2013
2014
2013 US Open
2022
2021