Archive
Every study in the index, by the month it entered it. Studies from before the index began, collected when it was extended back to January 2022, are listed under their month of publication. To find a particular study, search; the whole index is also available as JSON.
- November 2026 13
- October 2026 165
- September 2026 131
- August 2026 132
- July 2026 174
- June 2026 204
- May 2026 156
- April 2026 145
- March 2026 164
- February 2026 127
- January 2026 217
- December 2025 186
- November 2025 121
- October 2025 160
- September 2025 147
- August 2025 118
- July 2025 129
- June 2025 172
- May 2025 142
- April 2025 116
- March 2025 139
- February 2025 97
- January 2025 243
- December 2024 155
- November 2024 106
- October 2024 127
- September 2024 109
- August 2024 113
- July 2024 107
- June 2024 117
- May 2024 104
- April 2024 92
- March 2024 84
- February 2024 71
- January 2024 184
- December 2023 92
- November 2023 98
- October 2023 94
- September 2023 91
- August 2023 92
- July 2023 95
- June 2023 105
- May 2023 88
- April 2023 83
- March 2023 101
- February 2023 73
- January 2023 196
- December 2022 103
- November 2022 83
- October 2022 71
- September 2022 80
- August 2022 75
- July 2022 110
- June 2022 84
- May 2022 62
- April 2022 64
- March 2022 91
- February 2022 81
- January 2022 140
- December 2021 19
- November 2021 18
- October 2021 15
- September 2021 10
- August 2021 18
- July 2021 17
- June 2021 17
- May 2021 14
- April 2021 4
- March 2021 8
- February 2021 3
- January 2021 1
- December 2020 1
- October 2020 1
- August 2020 1
- July 2020 2
- June 2020 1
- May 2020 1
- August 2019 1