diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..b7f9f66
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1 @@
+benchmark.py
\ No newline at end of file
diff --git a/benchmarks/Benchmarks.xlsx b/benchmarks/Benchmarks.xlsx
new file mode 100644
index 0000000..eb24aa3
Binary files /dev/null and b/benchmarks/Benchmarks.xlsx differ
diff --git a/benchmarks/README.md b/benchmarks/README.md
new file mode 100644
index 0000000..425bff1
--- /dev/null
+++ b/benchmarks/README.md
@@ -0,0 +1,40 @@
+# Benchmarks
+
+## Konfiguration
+
+_Angelehnt an Pierre Quentels [Brython Benchmarking 2015](https://brythonista.wordpress.com/2015/03/28/comparing-the-speed-of-cpython-brython-skulpt-and-pypy-js/)_
+
+- Windows 10 64-bit
+- Firefox 104.0 64-bit
+- Neuste Version des jeweiligen Frameworks
+- 5 Läufe pro Framework
+- Neustart und Leerung jeglicher Caches nach jedem Lauf
+- Geometrisches Mittel der 5 Versuche
+
+## Ergebnisse
+
+- CPython 3.10.6
+- [Skulpt 1.3.0 @ Python 2.6(ish)](https://skulpt.org/)
+- [PyPy.js v0.4.0 @ Python 2.7.9](https://pypyjs.org/)
+- [Brython 3.10.0 @ Python 3.10.6](https://brython.info/console.html)
+- [Pyodide 0.21.1 @ Python 3.10.2](https://pyodide.org/en/stable/console.html)
+- [PyScript 2022.06.1 @ Python 3.10.2](https://pyscript.net/examples/repl.html)
+
+_Alle Messergebnisse inkl. Berechnung sind in `Benchmarks.xlsx` zu finden._
+
+```text
+                               Ausführungszeit (ms)                 |          x-mal langsamer als CPython
+                    CPython Skulpt PyPy.js Brython Pyodide PyScript |  Skulpt PyPy.js Brython Pyodide PyScript
+assignment.py            47   1711    1602    1242     221      194 |    36.4   34.1     26.4     4.7      4.1
+augm_assign.py           97   2919    1828    2116     378      325 |    30.1   18.8     21.8     3.9      3.4
+assignment_float.py      44   1707    1505    1306     234      195 |    38.8   34.2     29.7     5.3      4.4
+build_dict.py           112   2301    2142    2071     466      437 |    20.5   19.1     18.5     4.2      3.9
+set_dict_item.py         67   1824    2182    1455     347      320 |    27.2   32.6     21.7     5.2      4.8
+build_list.py            84   1924    1527    1302     440      412 |    22.9   18.2     15.5     5.2      4.9
+set_list_item.py         73   2264    1455    1432     342      307 |    31.0   19.9     19.6     4.7      4.2
+add_integers.py         106   4232    1743    2298     436      381 |    39.9   16.4     21.7     4.1      3.6
+add_strings.py          154   3155    1760    3440     627      575 |    20.5   11.4     22.3     4.1      3.7
+str_of_int.py            23    553     189     131     104      103 |    24.0    8.2      5.7     4.5      4.5
+create_function.py      114   2862    1521    2047     526      479 |    25.1   13.3     18.0     4.6      4.2
+function_call.py        117   2363    1387    2090     457      385 |    20.2   11.9     11.9     3.9      3.3
+```
diff --git a/benchmarks/benchmark.py b/benchmarks/benchmark.py
index 26124c2..638c144 100644
--- a/benchmarks/benchmark.py
+++ b/benchmarks/benchmark.py
@@ -1,4 +1,80 @@
 src = """import time\n\nt0 = time.time()\nfor i in range(1000000):\n    a = 1\nprint("assignment.py", time.time()-t0)\n\nt0 = time.time()\na = 0\nfor i in range(1000000):\n    a += 1\nprint("augm_assign.py", time.time()-t0)\n\nt0 = time.time()\nfor i in range(1000000):\n    a = 1.0\nprint("assignment_float.py", time.time()-t0)\n\nt0 = time.time()\nfor i in range(1000000):\n    a = {0:0}\nprint("build_dict.py", time.time()-t0)\n\nt0 = time.time()\na = {0:0}\n\nfor i in range(1000000):\n    a[0] = i\n\nassert a[0]==999999\nprint("set_dict_item.py", time.time()-t0)\n\nt0 = time.time()\nfor i in range(1000000):\n    a = [1, 2, 3]\nprint("build_list.py", time.time()-t0)\n\nt0 = time.time()\na = [0]\n\nfor i in range(1000000):\n    a[0] = i\nprint("set_list_item.py", time.time()-t0)\n\nt0 = time.time()\na, b, c = 1, 2, 3\nfor i in range(1000000):\n    a + b + c\nprint("add_integers.py", time.time()-t0)\n\nt0 = time.time()\na, b, c = 'a', 'b', 'c'\nfor i in range(1000000):\n    a + b + c\nprint("add_strings.py", time.time()-t0)\n\nt0 = time.time()\nfor _i in range(100000):\n    str(_i)\nprint("str_of_int.py", time.time()-t0)\n\nt0 = time.time()\nfor i in range(1000000):\n    def f():\n        pass\nprint("create_function.py", time.time()-t0)\n\nt0 = time.time()\ndef f(x):\n    return x\nfor i in range(1000000):\n    f(i)\nprint("function_call.py", time.time()-t0)\n\n"""
 exec(src)
 
+# Expanded for Skulpt
+
+import time
+
+t0 = time.time()
+for i in range(1000000):
+    a = 1
+print("assignment.py", time.time()-t0)
+
+t0 = time.time()
+a = 0
+for i in range(1000000):
+    a += 1
+print("augm_assign.py", time.time()-t0)
+
+t0 = time.time()
+for i in range(1000000):
+    a = 1.0
+print("assignment_float.py", time.time()-t0)
+
+t0 = time.time()
+for i in range(1000000):
+    a = {0:0}
+print("build_dict.py", time.time()-t0)
+
+t0 = time.time()
+a = {0:0}
+
+for i in range(1000000):
+    a[0] = i
+
+assert a[0]==999999
+print("set_dict_item.py", time.time()-t0)
+
+t0 = time.time()
+for i in range(1000000):
+    a = [1, 2, 3]
+print("build_list.py", time.time()-t0)
+
+t0 = time.time()
+a = [0]
+
+for i in range(1000000):
+    a[0] = i
+print("set_list_item.py", time.time()-t0)
+
+t0 = time.time()
+a, b, c = 1, 2, 3
+for i in range(1000000):
+    a + b + c
+print("add_integers.py", time.time()-t0)
+
+t0 = time.time()
+a, b, c = 'a', 'b', 'c'
+for i in range(1000000):
+    a + b + c
+print("add_strings.py", time.time()-t0)
+
+t0 = time.time()
+for _i in range(100000):
+    str(_i)
+print("str_of_int.py", time.time()-t0)
+
+t0 = time.time()
+for i in range(1000000):
+    def f():
+        pass
+print("create_function.py", time.time()-t0)
+
+t0 = time.time()
+def f(x):
+    return x
+for i in range(1000000):
+    f(i)
+print("function_call.py", time.time()-t0)
+
 # Source: http://brython.info/speed/bench_str_pypy.txt