Hello, I am trying to take a table from looking like this
| Name |
Year |
| Christina |
2011 |
| Christina |
2012 |
| Christina |
2013 |
| Christina |
2015 |
| Christina |
2020 |
| Chris |
2015 |
| Chris |
2016 |
| Luna |
2001 |
| Luna |
2023 |
| Luna |
2021 |
| Luna |
2013 |
| Luna |
2010 |
to this
| Name |
Year |
Start Year |
Last Year |
| Christina |
2011 |
2011 |
2020 |
| Christina |
2012 |
2011 |
2020 |
| Christina |
2013 |
2011 |
2020 |
| Christina |
2015 |
2011 |
2020 |
| Christina |
2020 |
2011 |
2020 |
| Chris |
2015 |
2015 |
2016 |
| Chris |
2016 |
2015 |
2016 |
| Luna |
2001 |
2001 |
2023 |
| Luna |
2023 |
2001 |
2023 |
| Luna |
2021 |
2001 |
2023 |
| Luna |
2013 |
2001 |
2023 |
| Luna |
2010 |
2001 |
2023 |
using SAS. Any code advice is appreciated.
Any provided methods will be used on 60K+ lines of data. Not posting that information here for privacy Reasons.
Names are in Character Format and Years are in Numeric Format