Here’s what’s inside:
1x All Anime Openings released in Summer 2011 (44 Openings)

Current Decade 1 Summer Season:
1981: https://nyaa.iss.one/view/1430489
1991: https://nyaa.iss.one/view/1430490
2001: https://nyaa.iss.one/view/1430785
2011: https://nyaa.iss.one/view/1432239
2021: https://nyaa.iss.one/view/1432300

All Releases:
1970: https://nyaa.iss.one/view/1320425
1980: https://nyaa.iss.one/view/1350240
1990: https://nyaa.iss.one/view/1350324
2000: https://nyaa.iss.one/view/1348978
2010: https://nyaa.iss.one/view/1319213
2020: https://nyaa.iss.one/view/1314712

Last Season (Spring):
1981: https://nyaa.iss.one/view/1368842
1991: https://nyaa.iss.one/view/1372216
2001: https://nyaa.iss.one/view/1378495
2011: https://nyaa.iss.one/view/1382495
2021: https://nyaa.iss.one/view/1396539